migrate tests to Jest

package.json

@@ -4,8 +4,8 @@
   "version": "3.6.0",
   "description": "Zabbix plugin for Grafana",
   "scripts": {
-    "test": "./node_modules/.bin/grunt test",
-    "build": "./node_modules/.bin/grunt",
+    "test": "./node_modules/.bin/grunt buildTest && jest",
+    "build": "./node_modules/.bin/grunt && jest",
     "watch": "./node_modules/.bin/grunt watch"
   },
   "repository": {
@@ -18,12 +18,12 @@
     "url": "https://github.com/alexanderzobnin/grafana-zabbix/issues"
   },
   "devDependencies": {
+    "babel": "~6.5.1",
     "babel-plugin-transform-es2015-for-of": "^6.6.0",
     "babel-plugin-transform-es2015-modules-systemjs": "^6.5.0",
     "babel-preset-es2015": "^6.5.0",
-    "babel": "~6.5.1",
-    "benchmark":"^2.1.4",
-    "chai": "~3.5.0",
+    "benchmark": "^2.1.4",
+    "grunt": "~0.4.5",
     "grunt-babel": "~6.0.0",
     "grunt-benchmark": "^1.0.0",
     "grunt-cli": "~1.2.0",
@@ -34,19 +34,14 @@
     "grunt-contrib-watch": "^0.6.1",
     "grunt-execute": "~0.2.2",
     "grunt-jscs": "^2.8.0",
-    "grunt-mocha-test": "~0.12.7",
     "grunt-sass": "^1.1.0",
     "grunt-systemjs-builder": "^0.2.5",
-    "grunt": "~0.4.5",
+    "jest": "^21.2.1",
     "jsdom": "~11.3.0",
     "jshint-stylish": "^2.1.0",
     "load-grunt-tasks": "~3.2.0",
-    "mocha": "^2.4.5",
     "moment": "~2.14.1",
-    "prunk": "~1.2.1",
     "q": "~1.4.1",
-    "sinon-chai": "~2.13.0",
-    "sinon":"^3.2.1",
     "tether-drop": "^1.4.2"
   },
   "dependencies": {