diff --git a/package.json b/package.json
index 1dc5097..d7e8b01 100644
--- a/package.json
+++ b/package.json
@@ -69,6 +69,7 @@
     "react-table": "^6.8.6",
     "react-test-renderer": "^16.7.0",
     "react-transition-group": "^2.5.2",
+    "rst2html": "github:thoward/rst2html#990cb89",
     "sass-loader": "^7.1.0",
     "style-loader": "^0.23.1",
     "tether-drop": "^1.4.2",
diff --git a/src/datasource-zabbix/FunctionEditor.tsx b/src/datasource-zabbix/FunctionEditor.tsx
new file mode 100644
index 0000000..285a88a
--- /dev/null
+++ b/src/datasource-zabbix/FunctionEditor.tsx
@@ -0,0 +1,109 @@
+import React from 'react';
+// import rst2html from 'rst2html';
+import { FunctionDescriptor, FunctionEditorControlsProps, FunctionEditorControls } from './FunctionEditorControls';
+
+// @ts-ignore
+import { PopperController, Popper } from '@grafana/ui';
+
+interface FunctionEditorProps extends FunctionEditorControlsProps {
+  func: FunctionDescriptor;
+}
+
+interface FunctionEditorState {
+  showingDescription: boolean;
+}
+
+class FunctionEditor extends React.PureComponent<FunctionEditorProps, FunctionEditorState> {
+  private triggerRef = React.createRef<HTMLSpanElement>();
+
+  constructor(props: FunctionEditorProps) {
+    super(props);
+
+    this.state = {
+      showingDescription: false,
+    };
+  }
+
+  renderContent = ({ updatePopperPosition }) => {
+    const {
+      onMoveLeft,
+      onMoveRight,
+      func: {
+        def: { name, description },
+      },
+    } = this.props;
+    const { showingDescription } = this.state;
+
+    if (showingDescription) {
+      return (
+        <div style={{ overflow: 'auto', maxHeight: '30rem', textAlign: 'left', fontWeight: 'normal' }}>
+          <h4 style={{ color: 'white' }}> {name} </h4>
+          <div>{description}</div>
+          />
+        </div>
+      );
+    }
+
+    return (
+      <FunctionEditorControls
+        {...this.props}
+        onMoveLeft={() => {
+          onMoveLeft(this.props.func);
+          updatePopperPosition();
+        }}
+        onMoveRight={() => {
+          onMoveRight(this.props.func);
+          updatePopperPosition();
+        }}
+        onDescriptionShow={() => {
+          this.setState({ showingDescription: true }, () => {
+            updatePopperPosition();
+          });
+        }}
+      />
+    );
+  };
+
+  render() {
+    return (
+      <PopperController content={this.renderContent} placement="top" hideAfter={300}>
+        {(showPopper, hidePopper, popperProps) => {
+          return (
+            <>
+              {this.triggerRef && (
+                <Popper
+                  {...popperProps}
+                  referenceElement={this.triggerRef.current}
+                  wrapperClassName="popper"
+                  className="popper__background"
+                  onMouseLeave={() => {
+                    this.setState({ showingDescription: false });
+                    hidePopper();
+                  }}
+                  onMouseEnter={showPopper}
+                  renderArrow={({ arrowProps, placement }) => (
+                    <div className="popper__arrow" data-placement={placement} {...arrowProps} />
+                  )}
+                />
+              )}
+
+              <span
+                ref={this.triggerRef}
+                onClick={popperProps.show ? hidePopper : showPopper}
+                onMouseLeave={() => {
+                  hidePopper();
+                  this.setState({ showingDescription: false });
+                }}
+                style={{ cursor: 'pointer' }}
+              >
+                {this.props.func.def.name}
+              </span>
+            </>
+          );
+        }}
+      </PopperController>
+    );
+  }
+}
+
+export { FunctionEditor };
diff --git a/src/datasource-zabbix/FunctionEditorControls.tsx b/src/datasource-zabbix/FunctionEditorControls.tsx
new file mode 100644
index 0000000..2fde684
--- /dev/null
+++ b/src/datasource-zabbix/FunctionEditorControls.tsx
@@ -0,0 +1,67 @@
+import React from 'react';
+
+const DOCS_FUNC_REF_URL = 'https://alexanderzobnin.github.io/grafana-zabbix/reference/functions/';
+
+export interface FunctionDescriptor {
+  text: string;
+  params: string[];
+  def: {
+    category: string;
+    defaultParams: string[];
+    description?: string;
+    fake: boolean;
+    name: string;
+    params: string[];
+  };
+}
+
+export interface FunctionEditorControlsProps {
+  onMoveLeft: (func: FunctionDescriptor) => void;
+  onMoveRight: (func: FunctionDescriptor) => void;
+  onRemove: (func: FunctionDescriptor) => void;
+}
+
+const FunctionHelpButton = (props: { description: string; name: string; onDescriptionShow: () => void }) => {
+  if (props.description) {
+    return <span className="pointer fa fa-question-circle" onClick={props.onDescriptionShow} />;
+  }
+
+  return (
+    <span
+      className="pointer fa fa-question-circle"
+      onClick={() => {
+        window.open(
+          DOCS_FUNC_REF_URL + '#' + props.name,
+          '_blank'
+        );
+      }}
+    />
+  );
+};
+
+export const FunctionEditorControls = (
+  props: FunctionEditorControlsProps & {
+    func: FunctionDescriptor;
+    onDescriptionShow: () => void;
+  }
+) => {
+  const { func, onMoveLeft, onMoveRight, onRemove, onDescriptionShow } = props;
+  return (
+    <div
+      style={{
+        display: 'flex',
+        width: '60px',
+        justifyContent: 'space-between',
+      }}
+    >
+      <span className="pointer fa fa-arrow-left" onClick={() => onMoveLeft(func)} />
+      <FunctionHelpButton
+        name={func.def.name}
+        description={func.def.description}
+        onDescriptionShow={onDescriptionShow}
+      />
+      <span className="pointer fa fa-remove" onClick={() => onRemove(func)} />
+      <span className="pointer fa fa-arrow-right" onClick={() => onMoveRight(func)} />
+    </div>
+  );
+};
diff --git a/src/datasource-zabbix/metric-function-editor.directive.js b/src/datasource-zabbix/metric-function-editor.directive.js
deleted file mode 100644
index 03d07ae..0000000
--- a/src/datasource-zabbix/metric-function-editor.directive.js
+++ /dev/null
@@ -1,248 +0,0 @@
-import angular from 'angular';
-import _ from 'lodash';
-import $ from 'jquery';
-
-const DOCS_FUNC_REF_URL = 'https://alexanderzobnin.github.io/grafana-zabbix/reference/functions/';
-
-angular
-  .module('grafana.directives')
-  .directive('metricFunctionEditor',
-
-  /** @ngInject */
-  function($compile, templateSrv) {
-
-    var funcSpanTemplate = '<a ng-click="">{{func.def.name}}</a><span>(</span>';
-    var paramTemplate = '<input type="text" style="display:none"' +
-                        ' class="input-mini tight-form-func-param"></input>';
-
-    var funcControlsTemplate =
-       '<div class="tight-form-func-controls">' +
-         '<span class="pointer fa fa-arrow-left"></span>' +
-         '<span class="pointer fa fa-question-circle"></span>' +
-         '<span class="pointer fa fa-remove" ></span>' +
-         '<span class="pointer fa fa-arrow-right"></span>' +
-       '</div>';
-
-    return {
-      restrict: 'A',
-      link: function postLink($scope, elem) {
-        var $funcLink = $(funcSpanTemplate);
-        var $funcControls = $(funcControlsTemplate);
-        var ctrl = $scope.ctrl;
-        var func = $scope.func;
-        var funcDef = func.def;
-        var scheduledRelink = false;
-        var paramCountAtLink = 0;
-
-        function clickFuncParam(paramIndex) {
-          /*jshint validthis:true */
-
-          var $link = $(this);
-          var $input = $link.next();
-
-          $input.val(func.params[paramIndex]);
-          $input.css('width', ($link.width() + 16) + 'px');
-
-          $link.hide();
-          $input.show();
-          $input.focus();
-          $input.select();
-
-          var typeahead = $input.data('typeahead');
-          if (typeahead) {
-            $input.val('');
-            typeahead.lookup();
-          }
-        }
-
-        function scheduledRelinkIfNeeded() {
-          if (paramCountAtLink === func.params.length) {
-            return;
-          }
-
-          if (!scheduledRelink) {
-            scheduledRelink = true;
-            setTimeout(function() {
-              relink();
-              scheduledRelink = false;
-            }, 200);
-          }
-        }
-
-        function inputBlur(paramIndex) {
-          /*jshint validthis:true */
-          var $input = $(this);
-          var $link = $input.prev();
-          var newValue = $input.val();
-
-          if (newValue !== '' || func.def.params[paramIndex].optional) {
-            $link.html(templateSrv.highlightVariablesAsHtml(newValue));
-
-            func.updateParam($input.val(), paramIndex);
-            scheduledRelinkIfNeeded();
-
-            $scope.$apply(function() {
-              ctrl.targetChanged();
-            });
-
-            $input.hide();
-            $link.show();
-          }
-        }
-
-        function inputKeyPress(paramIndex, e) {
-          /*jshint validthis:true */
-          if(e.which === 13) {
-            inputBlur.call(this, paramIndex);
-          }
-        }
-
-        function inputKeyDown() {
-          /*jshint validthis:true */
-          this.style.width = (3 + this.value.length) * 8 + 'px';
-        }
-
-        function addTypeahead($input, paramIndex) {
-          $input.attr('data-provide', 'typeahead');
-
-          var options = funcDef.params[paramIndex].options;
-          if (funcDef.params[paramIndex].type === 'int' ||
-              funcDef.params[paramIndex].type === 'float') {
-            options = _.map(options, function(val) { return val.toString(); });
-          }
-
-          $input.typeahead({
-            source: options,
-            minLength: 0,
-            items: 20,
-            updater: function (value) {
-              setTimeout(function() {
-                inputBlur.call($input[0], paramIndex);
-              }, 0);
-              return value;
-            }
-          });
-
-          var typeahead = $input.data('typeahead');
-          typeahead.lookup = function () {
-            this.query = this.$element.val() || '';
-            return this.process(this.source);
-          };
-        }
-
-        function toggleFuncControls() {
-          var targetDiv = elem.closest('.tight-form');
-
-          if (elem.hasClass('show-function-controls')) {
-            elem.removeClass('show-function-controls');
-            targetDiv.removeClass('has-open-function');
-            $funcControls.hide();
-            return;
-          }
-
-          elem.addClass('show-function-controls');
-          targetDiv.addClass('has-open-function');
-
-          $funcControls.show();
-        }
-
-        function addElementsAndCompile() {
-          $funcControls.appendTo(elem);
-          $funcLink.appendTo(elem);
-
-          _.each(funcDef.params, function(param, index) {
-            if (param.optional && func.params.length <= index) {
-              return;
-            }
-
-            if (index > 0) {
-              $('<span>, </span>').appendTo(elem);
-            }
-
-            var paramValue = templateSrv.highlightVariablesAsHtml(func.params[index]);
-            var $paramLink = $('<a ng-click="" class="graphite-func-param-link">' + paramValue + '</a>');
-            var $input = $(paramTemplate);
-
-            paramCountAtLink++;
-
-            $paramLink.appendTo(elem);
-            $input.appendTo(elem);
-
-            $input.blur(_.partial(inputBlur, index));
-            $input.keyup(inputKeyDown);
-            $input.keypress(_.partial(inputKeyPress, index));
-            $paramLink.click(_.partial(clickFuncParam, index));
-
-            if (funcDef.params[index].options) {
-              addTypeahead($input, index);
-            }
-
-          });
-
-          $('<span>)</span>').appendTo(elem);
-
-          $compile(elem.contents())($scope);
-        }
-
-        function ifJustAddedFocusFistParam() {
-          if ($scope.func.added) {
-            $scope.func.added = false;
-            setTimeout(function() {
-              elem.find('.graphite-func-param-link').first().click();
-            }, 10);
-          }
-        }
-
-        function registerFuncControlsToggle() {
-          $funcLink.click(toggleFuncControls);
-        }
-
-        function registerFuncControlsActions() {
-          $funcControls.click(function(e) {
-            var $target = $(e.target);
-            if ($target.hasClass('fa-remove')) {
-              toggleFuncControls();
-              $scope.$apply(function() {
-                ctrl.removeFunction($scope.func);
-              });
-              return;
-            }
-
-            if ($target.hasClass('fa-arrow-left')) {
-              $scope.$apply(function() {
-                _.move($scope.target.functions, $scope.$index, $scope.$index - 1);
-                ctrl.targetChanged();
-              });
-              return;
-            }
-
-            if ($target.hasClass('fa-arrow-right')) {
-              $scope.$apply(function() {
-                _.move($scope.target.functions, $scope.$index, $scope.$index + 1);
-                ctrl.targetChanged();
-              });
-              return;
-            }
-
-            if ($target.hasClass('fa-question-circle')) {
-              var docSite = DOCS_FUNC_REF_URL;
-              window.open(docSite + '#' + funcDef.name.toLowerCase(),'_blank');
-              return;
-            }
-          });
-        }
-
-        function relink() {
-          elem.children().remove();
-
-          addElementsAndCompile();
-          ifJustAddedFocusFistParam();
-          registerFuncControlsToggle();
-          registerFuncControlsActions();
-        }
-
-        relink();
-      }
-    };
-
-  });
diff --git a/src/datasource-zabbix/metric-function-editor.directive.ts b/src/datasource-zabbix/metric-function-editor.directive.ts
new file mode 100644
index 0000000..232025d
--- /dev/null
+++ b/src/datasource-zabbix/metric-function-editor.directive.ts
@@ -0,0 +1,256 @@
+import coreModule from 'grafana/app/core/core_module';
+import _ from 'lodash';
+import $ from 'jquery';
+import { react2AngularDirective } from './react2angular';
+import { FunctionEditor } from './FunctionEditor';
+
+/** @ngInject */
+export function zabbixFunctionEditor($compile, templateSrv) {
+  const funcSpanTemplate = `
+    <zbx-function-editor
+      func="func"
+      onRemove="ctrl.handleRemoveFunction"
+      onMoveLeft="ctrl.handleMoveLeft"
+      onMoveRight="ctrl.handleMoveRight"
+    /><span>(</span>
+  `;
+  const paramTemplate =
+    '<input type="text" style="display:none"' + ' class="input-small tight-form-func-param"></input>';
+
+  return {
+    restrict: 'A',
+    link: function postLink($scope, elem) {
+      const $funcLink = $(funcSpanTemplate);
+      const ctrl = $scope.ctrl;
+      const func = $scope.func;
+      let scheduledRelink = false;
+      let paramCountAtLink = 0;
+      let cancelBlur = null;
+
+      ctrl.handleRemoveFunction = func => {
+        ctrl.removeFunction(func);
+      };
+
+      ctrl.handleMoveLeft = func => {
+        ctrl.moveFunction(func, -1);
+      };
+
+      ctrl.handleMoveRight = func => {
+        ctrl.moveFunction(func, 1);
+      };
+
+      function clickFuncParam(this: any, paramIndex) {
+        /*jshint validthis:true */
+
+        const $link = $(this);
+        const $comma = $link.prev('.comma');
+        const $input = $link.next();
+
+        $input.val(func.params[paramIndex]);
+
+        $comma.removeClass('query-part__last');
+        $link.hide();
+        $input.show();
+        $input.focus();
+        $input.select();
+
+        const typeahead = $input.data('typeahead');
+        if (typeahead) {
+          $input.val('');
+          typeahead.lookup();
+        }
+      }
+
+      function scheduledRelinkIfNeeded() {
+        if (paramCountAtLink === func.params.length) {
+          return;
+        }
+
+        if (!scheduledRelink) {
+          scheduledRelink = true;
+          setTimeout(() => {
+            relink();
+            scheduledRelink = false;
+          }, 200);
+        }
+      }
+
+      function paramDef(index) {
+        if (index < func.def.params.length) {
+          return func.def.params[index];
+        }
+        if ((_.last(func.def.params) as any).multiple) {
+          return _.assign({}, _.last(func.def.params), { optional: true });
+        }
+        return {};
+      }
+
+      function switchToLink(inputElem, paramIndex) {
+        /*jshint validthis:true */
+        const $input = $(inputElem);
+
+        clearTimeout(cancelBlur);
+        cancelBlur = null;
+
+        const $link = $input.prev();
+        const $comma = $link.prev('.comma');
+        const newValue = $input.val();
+
+        // remove optional empty params
+        if (newValue !== '' || paramDef(paramIndex).optional) {
+          func.updateParam(newValue, paramIndex);
+          $link.html(newValue ? templateSrv.highlightVariablesAsHtml(newValue) : '&nbsp;');
+        }
+
+        scheduledRelinkIfNeeded();
+
+        $scope.$apply(() => {
+          ctrl.targetChanged();
+        });
+
+        if ($link.hasClass('query-part__last') && newValue === '') {
+          $comma.addClass('query-part__last');
+        } else {
+          $link.removeClass('query-part__last');
+        }
+
+        $input.hide();
+        $link.show();
+      }
+
+      // this = input element
+      function inputBlur(this: any, paramIndex) {
+        /*jshint validthis:true */
+        const inputElem = this;
+        // happens long before the click event on the typeahead options
+        // need to have long delay because the blur
+        cancelBlur = setTimeout(() => {
+          switchToLink(inputElem, paramIndex);
+        }, 200);
+      }
+
+      function inputKeyPress(this: any, paramIndex, e) {
+        /*jshint validthis:true */
+        if (e.which === 13) {
+          $(this).blur();
+        }
+      }
+
+      function inputKeyDown(this: any) {
+        /*jshint validthis:true */
+        this.style.width = (3 + this.value.length) * 8 + 'px';
+      }
+
+      function addTypeahead($input, paramIndex) {
+        $input.attr('data-provide', 'typeahead');
+
+        let options = paramDef(paramIndex).options;
+        if (paramDef(paramIndex).type === 'int' || paramDef(paramIndex).type === 'float') {
+          options = _.map(options, val => {
+            return val.toString();
+          });
+        }
+
+        $input.typeahead({
+          source: options,
+          minLength: 0,
+          items: 20,
+          updater: value => {
+            $input.val(value);
+            switchToLink($input[0], paramIndex);
+            return value;
+          },
+        });
+
+        const typeahead = $input.data('typeahead');
+        typeahead.lookup = function() {
+          this.query = this.$element.val() || '';
+          return this.process(this.source);
+        };
+      }
+
+      function addElementsAndCompile() {
+        $funcLink.appendTo(elem);
+
+        const defParams: any = _.clone(func.def.params);
+        const lastParam: any = _.last(func.def.params);
+
+        while (func.params.length >= defParams.length && lastParam && lastParam.multiple) {
+          defParams.push(_.assign({}, lastParam, { optional: true }));
+        }
+
+        _.each(defParams, (param: any, index: number) => {
+          if (param.optional && func.params.length < index) {
+            return false;
+          }
+
+          let paramValue = templateSrv.highlightVariablesAsHtml(func.params[index]);
+          const hasValue = paramValue !== null && paramValue !== undefined;
+
+          const last = index >= func.params.length - 1 && param.optional && !hasValue;
+          if (last && param.multiple) {
+            paramValue = '+';
+          }
+
+          if (index > 0) {
+            $('<span class="comma' + (last ? ' query-part__last' : '') + '">, </span>').appendTo(elem);
+          }
+
+          const $paramLink = $(
+            '<a ng-click="" class="graphite-func-param-link' +
+              (last ? ' query-part__last' : '') +
+              '">' +
+              (hasValue ? paramValue : '&nbsp;') +
+              '</a>'
+          );
+          const $input = $(paramTemplate);
+          $input.attr('placeholder', param.name);
+
+          paramCountAtLink++;
+
+          $paramLink.appendTo(elem);
+          $input.appendTo(elem);
+
+          $input.blur(_.partial(inputBlur, index));
+          $input.keyup(inputKeyDown);
+          $input.keypress(_.partial(inputKeyPress, index));
+          $paramLink.click(_.partial(clickFuncParam, index));
+
+          if (param.options) {
+            addTypeahead($input, index);
+          }
+
+          return true;
+        });
+
+        $('<span>)</span>').appendTo(elem);
+
+        $compile(elem.contents())($scope);
+      }
+
+      function ifJustAddedFocusFirstParam() {
+        if ($scope.func.added) {
+          $scope.func.added = false;
+          setTimeout(() => {
+            elem
+              .find('.graphite-func-param-link')
+              .first()
+              .click();
+          }, 10);
+        }
+      }
+
+      function relink() {
+        elem.children().remove();
+        addElementsAndCompile();
+        ifJustAddedFocusFirstParam();
+      }
+
+      relink();
+    },
+  };
+}
+
+coreModule.directive('zabbixFunctionEditor', zabbixFunctionEditor);
+
+react2AngularDirective('zbxFunctionEditor', FunctionEditor, ['func', 'onRemove', 'onMoveLeft', 'onMoveRight']);
diff --git a/src/datasource-zabbix/partials/query.editor.html b/src/datasource-zabbix/partials/query.editor.html
index de976ae..33b2f7d 100644
--- a/src/datasource-zabbix/partials/query.editor.html
+++ b/src/datasource-zabbix/partials/query.editor.html
@@ -204,7 +204,9 @@
   <div class="gf-form-inline" ng-show="ctrl.target.mode == editorMode.METRICS || ctrl.target.mode == editorMode.ITEMID">
     <div class="gf-form">
       <label class="gf-form-label query-keyword width-7">Functions</label>
-      <div ng-repeat="func in ctrl.target.functions" class="gf-form-label query-part" metric-function-editor></div>
+    </div>
+    <div ng-repeat="func in ctrl.target.functions" class="gf-form">
+      <span zabbix-function-editor class="gf-form-label query-part" ng-hide="func.hidden"></span>
     </div>
     <div class="gf-form dropdown" add-metric-function>
     </div>
diff --git a/src/datasource-zabbix/query.controller.js b/src/datasource-zabbix/query.controller.js
index 95fa3e9..fc9f963 100644
--- a/src/datasource-zabbix/query.controller.js
+++ b/src/datasource-zabbix/query.controller.js
@@ -275,6 +275,12 @@ export class ZabbixQueryController extends QueryCtrl {
     this.targetChanged();
   }
 
+  moveFunction(func, offset) {
+    const index = this.target.functions.indexOf(func);
+    _.move(this.target.functions, index, index + offset);
+    this.targetChanged();
+  }
+
   moveAliasFuncLast() {
     var aliasFunc = _.find(this.target.functions, function(func) {
       return func.def.name === 'alias' ||
diff --git a/src/datasource-zabbix/react2angular.ts b/src/datasource-zabbix/react2angular.ts
new file mode 100644
index 0000000..2588746
--- /dev/null
+++ b/src/datasource-zabbix/react2angular.ts
@@ -0,0 +1,10 @@
+import coreModule from 'grafana/app/core/core_module';
+
+export function react2AngularDirective(name: string, component: any, options: any) {
+  coreModule.directive(name, [
+    'reactDirective',
+    reactDirective => {
+      return reactDirective(component, options);
+    },
+  ]);
+}
diff --git a/webpack/webpack.base.conf.js b/webpack/webpack.base.conf.js
index 414ba44..af61e38 100644
--- a/webpack/webpack.base.conf.js
+++ b/webpack/webpack.base.conf.js
@@ -28,7 +28,7 @@ module.exports = {
   externals: [
     // remove the line below if you don't want to use builtin versions
     'jquery', 'lodash', 'moment', 'angular',
-    'react', 'react-dom',
+    'react', 'react-dom', '@grafana/ui',
     function (context, request, callback) {
       var prefix = 'grafana/';
       if (request.indexOf(prefix) === 0) {
@@ -53,7 +53,7 @@ module.exports = {
     ExtractTextPluginDark,
   ],
   resolve: {
-    extensions: [".js", ".ts", ".tsx", ".html", ".scss"]
+    extensions: ['.js', '.es6', '.ts', '.tsx', '.html', '.scss']
   },
   module: {
     rules: [
diff --git a/yarn.lock b/yarn.lock
index 3c8a7e4..f1e362a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -373,6 +373,11 @@ acorn-dynamic-import@^3.0.0:
   dependencies:
     acorn "^5.0.0"
 
+acorn-es7-plugin@^1.0.12:
+  version "1.1.7"
+  resolved "https://registry.yarnpkg.com/acorn-es7-plugin/-/acorn-es7-plugin-1.1.7.tgz#f2ee1f3228a90eead1245f9ab1922eb2e71d336b"
+  integrity sha1-8u4fMiipDurRJF+asZIusucdM2s=
+
 acorn-globals@^4.0.0, acorn-globals@^4.1.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/acorn-globals/-/acorn-globals-4.1.0.tgz#ab716025dbe17c54d3ef81d32ece2b2d99fe2538"
@@ -555,6 +560,11 @@ array-equal@^1.0.0:
   resolved "https://registry.yarnpkg.com/array-equal/-/array-equal-1.0.0.tgz#8c2a5ef2472fd9ea742b04c77a75093ba2757c93"
   integrity sha1-jCpe8kcv2ep0KwTHenUJO6J1fJM=
 
+array-filter@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/array-filter/-/array-filter-1.0.0.tgz#baf79e62e6ef4c2a4c0b831232daffec251f9d83"
+  integrity sha1-uveeYubvTCpMC4MSMtr/7CUfnYM=
+
 array-find-index@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/array-find-index/-/array-find-index-1.0.2.tgz#df010aa1287e164bbda6f9723b0a96a1ec4187a1"
@@ -1623,6 +1633,11 @@ cache-base@^1.0.1:
     union-value "^1.0.0"
     unset-value "^1.0.0"
 
+call-signature@0.0.2:
+  version "0.0.2"
+  resolved "https://registry.yarnpkg.com/call-signature/-/call-signature-0.0.2.tgz#a84abc825a55ef4cb2b028bd74e205a65b9a4996"
+  integrity sha1-qEq8glpV70yysCi9dOIFpluaSZY=
+
 callsites@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/callsites/-/callsites-2.0.0.tgz#06eb84f00eea413da86affefacbffb36093b3c50"
@@ -1922,6 +1937,11 @@ commander@^2.12.1:
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.19.0.tgz#f6198aa84e5b83c46054b94ddedbfed5ee9ff12a"
   integrity sha512-6tvAOO+D6OENvRAh524Dh9jcfKTYDQAqvqezbCW82xj5X0pSrcpxtvRKHLG0yBY6SD7PSDrJaj+0AiOcKVd1Xg==
 
+commander@^2.9.0:
+  version "2.20.0"
+  resolved "https://registry.yarnpkg.com/commander/-/commander-2.20.0.tgz#d58bb2b5c1ee8f87b0d340027e9e94e222c5a422"
+  integrity sha512-7j2y+40w61zy6YC2iRNpUe/NwhNyoXrYpHMrSunaMG64nRnaf96zO/KMQR4OyN/UnE5KLyEBnKHd4aG3rskjpQ==
+
 commander@~2.13.0:
   version "2.13.0"
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.13.0.tgz#6964bca67685df7c1f1430c584f07d7597885b9c"
@@ -2039,6 +2059,11 @@ core-js@^1.0.0:
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-1.2.7.tgz#652294c14651db28fa93bd2d5ff2983a4f08c636"
   integrity sha1-ZSKUwUZR2yj6k70tX/KYOk8IxjY=
 
+core-js@^2.0.0:
+  version "2.6.9"
+  resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.6.9.tgz#6b4b214620c834152e179323727fc19741b084f2"
+  integrity sha512-HOpZf6eXmnl7la+cUdMnLvUxKNqLUzJvgIziQ0DiF3JwSImNphIqdGqzj6hIKyX04MmV0poclQ7+wjWvxQyR2A==
+
 core-js@^2.4.0, core-js@^2.5.0:
   version "2.5.7"
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.5.7.tgz#f972608ff0cead68b841a16a932d0b183791814e"
@@ -2366,6 +2391,11 @@ detect-newline@^2.1.0:
   resolved "https://registry.yarnpkg.com/detect-newline/-/detect-newline-2.1.0.tgz#f41f1c10be4b00e87b5f13da680759f2c5bfd3e2"
   integrity sha1-9B8cEL5LAOh7XxPaaAdZ8sW/0+I=
 
+diff-match-patch@^1.0.0:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/diff-match-patch/-/diff-match-patch-1.0.4.tgz#6ac4b55237463761c4daf0dc603eb869124744b1"
+  integrity sha512-Uv3SW8bmH9nAtHKaKSanOQmj2DnlH65fUpcrMdfdaOxUG02QQ4YGZ8AE7kKOMisF7UqvOlGKVYWRvezdncW9lg==
+
 diff@^3.2.0:
   version "3.5.0"
   resolved "https://registry.yarnpkg.com/diff/-/diff-3.5.0.tgz#800c0dd1e0a8bfbc95835c202ad220fe317e5a12"
@@ -2450,6 +2480,11 @@ duplexify@^3.4.2, duplexify@^3.6.0:
     readable-stream "^2.0.0"
     stream-shift "^1.0.0"
 
+eastasianwidth@^0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/eastasianwidth/-/eastasianwidth-0.2.0.tgz#696ce2ec0aa0e6ea93a397ffcf24aa7840c827cb"
+  integrity sha512-I88TYZWc9XiYHRQ4/3c5rjjfgkjhLyW2luGIheGERbNQ6OY7yTybanSpDXZa8y7VUP9YmDcYa+eyq4ca7iLqWA==
+
 ecc-jsbn@~0.1.1:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/ecc-jsbn/-/ecc-jsbn-0.1.2.tgz#3a83a904e54353287874c564b7549386849a98c9"
@@ -2481,6 +2516,22 @@ emojis-list@^2.0.0:
   resolved "https://registry.yarnpkg.com/emojis-list/-/emojis-list-2.1.0.tgz#4daa4d9db00f9819880c79fa457ae5b09a1fd389"
   integrity sha1-TapNnbAPmBmIDHn6RXrlsJof04k=
 
+empower-core@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/empower-core/-/empower-core-1.2.0.tgz#ce3fb2484d5187fa29c23fba8344b0b2fdf5601c"
+  integrity sha512-g6+K6Geyc1o6FdXs9HwrXleCFan7d66G5xSCfSF7x1mJDCes6t0om9lFQG3zOrzh3Bkb/45N0cZ5Gqsf7YrzGQ==
+  dependencies:
+    call-signature "0.0.2"
+    core-js "^2.0.0"
+
+empower@^1.3.1:
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/empower/-/empower-1.3.1.tgz#768979cbbb36d71d8f5edaab663deacb9dab916c"
+  integrity sha512-uB6/ViBaawOO/uujFADTK3SqdYlxYNn+N4usK9MRKZ4Hbn/1QSy8k2PezxCA2/+JGbF8vd/eOfghZ90oOSDZCA==
+  dependencies:
+    core-js "^2.0.0"
+    empower-core "^1.2.0"
+
 encoding@^0.1.11:
   version "0.1.12"
   resolved "https://registry.yarnpkg.com/encoding/-/encoding-0.1.12.tgz#538b66f3ee62cd1ab51ec323829d1f9480c74beb"
@@ -2601,6 +2652,13 @@ esprima@^4.0.0:
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-4.0.1.tgz#13b04cdb3e6c5d19df91ab6987a8695619b0aa71"
   integrity sha512-eGuFFw7Upda+g4p+QHvnW0RyTX/SVeJBDM/gCtMARO0cLuT2HcEKnTPvhjV6aGeqrCB/sbNop0Kszm0jsaWU4A==
 
+espurify@^1.6.0:
+  version "1.8.1"
+  resolved "https://registry.yarnpkg.com/espurify/-/espurify-1.8.1.tgz#5746c6c1ab42d302de10bd1d5bf7f0e8c0515056"
+  integrity sha512-ZDko6eY/o+D/gHCWyHTU85mKDgYcS4FJj7S+YD6WIInm7GQ6AnOjmcL4+buFV/JOztVLELi/7MmuGU5NHta0Mg==
+  dependencies:
+    core-js "^2.0.0"
+
 esrecurse@^4.1.0:
   version "4.2.1"
   resolved "https://registry.yarnpkg.com/esrecurse/-/esrecurse-4.2.1.tgz#007a3b9fdbc2b3bb87e4879ea19c92fdbd3942cf"
@@ -5532,6 +5590,11 @@ object-copy@^0.1.0:
     define-property "^0.2.5"
     kind-of "^3.0.3"
 
+object-keys@^1.0.0:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/object-keys/-/object-keys-1.1.1.tgz#1c47f272df277f3b1daf061677d9c82e2322c60e"
+  integrity sha512-NuAESUOUMrlIXOfHKzD6bpPu3tYt3xvjNdRIQ+FeT0lNb4K8WR70CaDxhuNguS2XG+GjkyMwOzsN5ZktImfhLA==
+
 object-keys@^1.0.12:
   version "1.0.12"
   resolved "https://registry.yarnpkg.com/object-keys/-/object-keys-1.0.12.tgz#09c53855377575310cca62f55bb334abff7b3ed2"
@@ -6038,6 +6101,105 @@ postcss@^6.0.1, postcss@^6.0.23:
     source-map "^0.6.1"
     supports-color "^5.4.0"
 
+power-assert-context-formatter@^1.0.7:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/power-assert-context-formatter/-/power-assert-context-formatter-1.2.0.tgz#8fbe72692288ec5a7203cdf215c8b838a6061d2a"
+  integrity sha512-HLNEW8Bin+BFCpk/zbyKwkEu9W8/zThIStxGo7weYcFkKgMuGCHUJhvJeBGXDZf0Qm2xis4pbnnciGZiX0EpSg==
+  dependencies:
+    core-js "^2.0.0"
+    power-assert-context-traversal "^1.2.0"
+
+power-assert-context-reducer-ast@^1.0.7:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/power-assert-context-reducer-ast/-/power-assert-context-reducer-ast-1.2.0.tgz#c7ca1c9e39a6fb717f7ac5fe9e76e192bf525df3"
+  integrity sha512-EgOxmZ/Lb7tw4EwSKX7ZnfC0P/qRZFEG28dx/690qvhmOJ6hgThYFm5TUWANDLK5NiNKlPBi5WekVGd2+5wPrw==
+  dependencies:
+    acorn "^5.0.0"
+    acorn-es7-plugin "^1.0.12"
+    core-js "^2.0.0"
+    espurify "^1.6.0"
+    estraverse "^4.2.0"
+
+power-assert-context-traversal@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/power-assert-context-traversal/-/power-assert-context-traversal-1.2.0.tgz#f6e71454baf640de5c1c9c270349f5c9ab0b2e94"
+  integrity sha512-NFoHU6g2umNajiP2l4qb0BRWD773Aw9uWdWYH9EQsVwIZnog5bd2YYLFCVvaxWpwNzWeEfZIon2xtyc63026pQ==
+  dependencies:
+    core-js "^2.0.0"
+    estraverse "^4.1.0"
+
+power-assert-formatter@^1.4.1:
+  version "1.4.1"
+  resolved "https://registry.yarnpkg.com/power-assert-formatter/-/power-assert-formatter-1.4.1.tgz#5dc125ed50a3dfb1dda26c19347f3bf58ec2884a"
+  integrity sha1-XcEl7VCj37HdomwZNH879Y7CiEo=
+  dependencies:
+    core-js "^2.0.0"
+    power-assert-context-formatter "^1.0.7"
+    power-assert-context-reducer-ast "^1.0.7"
+    power-assert-renderer-assertion "^1.0.7"
+    power-assert-renderer-comparison "^1.0.7"
+    power-assert-renderer-diagram "^1.0.7"
+    power-assert-renderer-file "^1.0.7"
+
+power-assert-renderer-assertion@^1.0.7:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/power-assert-renderer-assertion/-/power-assert-renderer-assertion-1.2.0.tgz#3db6ffcda106b37bc1e06432ad0d748a682b147a"
+  integrity sha512-3F7Q1ZLmV2ZCQv7aV7NJLNK9G7QsostrhOU7U0RhEQS/0vhEqrRg2jEJl1jtUL4ZyL2dXUlaaqrmPv5r9kRvIg==
+  dependencies:
+    power-assert-renderer-base "^1.1.1"
+    power-assert-util-string-width "^1.2.0"
+
+power-assert-renderer-base@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/power-assert-renderer-base/-/power-assert-renderer-base-1.1.1.tgz#96a650c6fd05ee1bc1f66b54ad61442c8b3f63eb"
+  integrity sha1-lqZQxv0F7hvB9mtUrWFELIs/Y+s=
+
+power-assert-renderer-comparison@^1.0.7:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/power-assert-renderer-comparison/-/power-assert-renderer-comparison-1.2.0.tgz#e4f88113225a69be8aa586ead05aef99462c0495"
+  integrity sha512-7c3RKPDBKK4E3JqdPtYRE9cM8AyX4LC4yfTvvTYyx8zSqmT5kJnXwzR0yWQLOavACllZfwrAGQzFiXPc5sWa+g==
+  dependencies:
+    core-js "^2.0.0"
+    diff-match-patch "^1.0.0"
+    power-assert-renderer-base "^1.1.1"
+    stringifier "^1.3.0"
+    type-name "^2.0.1"
+
+power-assert-renderer-diagram@^1.0.7:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/power-assert-renderer-diagram/-/power-assert-renderer-diagram-1.2.0.tgz#37f66e8542e5677c5b58e6d72b01c0d9a30e2219"
+  integrity sha512-JZ6PC+DJPQqfU6dwSmpcoD7gNnb/5U77bU5KgNwPPa+i1Pxiz6UuDeM3EUBlhZ1HvH9tMjI60anqVyi5l2oNdg==
+  dependencies:
+    core-js "^2.0.0"
+    power-assert-renderer-base "^1.1.1"
+    power-assert-util-string-width "^1.2.0"
+    stringifier "^1.3.0"
+
+power-assert-renderer-file@^1.0.7:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/power-assert-renderer-file/-/power-assert-renderer-file-1.2.0.tgz#3f4bebd9e1455d75cf2ac541e7bb515a87d4ce4b"
+  integrity sha512-/oaVrRbeOtGoyyd7e4IdLP/jIIUFJdqJtsYzP9/88R39CMnfF/S/rUc8ZQalENfUfQ/wQHu+XZYRMaCEZmEesg==
+  dependencies:
+    power-assert-renderer-base "^1.1.1"
+
+power-assert-util-string-width@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/power-assert-util-string-width/-/power-assert-util-string-width-1.2.0.tgz#6e06d5e3581bb876c5d377c53109fffa95bd91a0"
+  integrity sha512-lX90G0igAW0iyORTILZ/QjZWsa1MZ6VVY3L0K86e2eKun3S4LKPH4xZIl8fdeMYLfOjkaszbNSzf1uugLeAm2A==
+  dependencies:
+    eastasianwidth "^0.2.0"
+
+power-assert@^1.2.0:
+  version "1.6.1"
+  resolved "https://registry.yarnpkg.com/power-assert/-/power-assert-1.6.1.tgz#b28cbc02ae808afd1431d0cd5093a39ac5a5b1fe"
+  integrity sha512-VWkkZV6Y+W8qLX/PtJu2Ur2jDPIs0a5vbP0TpKeybNcIXmT4vcKoVkyTp5lnQvTpY/DxacAZ4RZisHRHLJcAZQ==
+  dependencies:
+    define-properties "^1.1.2"
+    empower "^1.3.1"
+    power-assert-formatter "^1.4.1"
+    universal-deep-strict-equal "^1.2.1"
+    xtend "^4.0.0"
+
 prelude-ls@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.1.2.tgz#21932a549f5e52ffd9a827f570e04be62a97da54"
@@ -6584,6 +6746,16 @@ resolve@^1.1.6, resolve@^1.1.7, resolve@^1.3.2:
   dependencies:
     path-parse "^1.0.5"
 
+restructured@0.0.11:
+  version "0.0.11"
+  resolved "https://registry.yarnpkg.com/restructured/-/restructured-0.0.11.tgz#f914f6b6f358b8e45d6d8ee268926cf1a783f710"
+  integrity sha1-+RT2tvNYuORdbY7iaJJs8aeD9xA=
+  dependencies:
+    commander "^2.9.0"
+    lodash "^4.0.0"
+    power-assert "^1.2.0"
+    unist-util-map "^1.0.2"
+
 ret@~0.1.10:
   version "0.1.15"
   resolved "https://registry.yarnpkg.com/ret/-/ret-0.1.15.tgz#b8a4825d5bdb1fc3f6f53c2bc33f81388681c7bc"
@@ -6616,6 +6788,12 @@ ripemd160@^2.0.0, ripemd160@^2.0.1:
     hash-base "^3.0.0"
     inherits "^2.0.1"
 
+"rst2html@github:thoward/rst2html#990cb89":
+  version "1.0.4"
+  resolved "https://codeload.github.com/thoward/rst2html/tar.gz/990cb89f2a300cdd9151790be377c4c0840df809"
+  dependencies:
+    restructured "0.0.11"
+
 rsvp@^3.3.3:
   version "3.6.2"
   resolved "https://registry.yarnpkg.com/rsvp/-/rsvp-3.6.2.tgz#2e96491599a96cde1b515d5674a8f7a91452926a"
@@ -7107,6 +7285,15 @@ string_decoder@~0.10.x:
   resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-0.10.31.tgz#62e203bc41766c6c28c9fc84301dab1c5310fa94"
   integrity sha1-YuIDvEF2bGwoyfyEMB2rHFMQ+pQ=
 
+stringifier@^1.3.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/stringifier/-/stringifier-1.4.0.tgz#d704581567f4526265d00ed8ecb354a02c3fec28"
+  integrity sha512-cNsMOqqrcbLcHTXEVmkw9y0fwDwkdgtZwlfyolzpQDoAE1xdNGhQhxBUfiDvvZIKl1hnUEgMv66nHwtMz3OjPw==
+  dependencies:
+    core-js "^2.0.0"
+    traverse "^0.6.6"
+    type-name "^2.0.1"
+
 stringmap@~0.2.2:
   version "0.2.2"
   resolved "https://registry.yarnpkg.com/stringmap/-/stringmap-0.2.2.tgz#556c137b258f942b8776f5b2ef582aa069d7d1b1"
@@ -7357,6 +7544,11 @@ tr46@^1.0.1:
   dependencies:
     punycode "^2.1.0"
 
+traverse@^0.6.6:
+  version "0.6.6"
+  resolved "https://registry.yarnpkg.com/traverse/-/traverse-0.6.6.tgz#cbdf560fd7b9af632502fed40f918c157ea97137"
+  integrity sha1-y99WD9e5r2MlAv7UD5GMFX6pcTc=
+
 trim-newlines@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/trim-newlines/-/trim-newlines-1.0.0.tgz#5887966bb582a4503a41eb524f7d35011815a613"
@@ -7459,6 +7651,11 @@ type-check@~0.3.2:
   dependencies:
     prelude-ls "~1.1.2"
 
+type-name@^2.0.1:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/type-name/-/type-name-2.0.2.tgz#efe7d4123d8ac52afff7f40c7e4dec5266008fb4"
+  integrity sha1-7+fUEj2KxSr/9/QMfk3sUmYAj7Q=
+
 typed-styles@^0.0.7:
   version "0.0.7"
   resolved "https://registry.yarnpkg.com/typed-styles/-/typed-styles-0.0.7.tgz#93392a008794c4595119ff62dde6809dbc40a3d9"
@@ -7571,6 +7768,22 @@ unique-slug@^2.0.0:
   dependencies:
     imurmurhash "^0.1.4"
 
+unist-util-map@^1.0.2:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/unist-util-map/-/unist-util-map-1.0.5.tgz#701069b72e1d1cc02db265502a5e82b77c2eb8b7"
+  integrity sha512-dFil/AN6vqhnQWNCZk0GF/G3+Q5YwsB+PqjnzvpO2wzdRtUJ1E8PN+XRE/PRr/G3FzKjRTJU0haqE0Ekl+O3Ag==
+  dependencies:
+    object-assign "^4.0.1"
+
+universal-deep-strict-equal@^1.2.1:
+  version "1.2.2"
+  resolved "https://registry.yarnpkg.com/universal-deep-strict-equal/-/universal-deep-strict-equal-1.2.2.tgz#0da4ac2f73cff7924c81fa4de018ca562ca2b0a7"
+  integrity sha1-DaSsL3PP95JMgfpN4BjKViyisKc=
+  dependencies:
+    array-filter "^1.0.0"
+    indexof "0.0.1"
+    object-keys "^1.0.0"
+
 unset-value@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/unset-value/-/unset-value-1.0.0.tgz#8376873f7d2335179ffb1e6fc3a8ed0dfc8ab559"