Fix backward compatibility with lodash 2.4, fixes #279.

src/datasource-zabbix/datasource.js

@@ -504,3 +504,8 @@ function sequence(funcsArray) {
     return result;
   };
 }
+
+// Fix for backward compatibility with lodash 2.4
+if (!_.includes) {
+  _.includes = _.contains;
+}

src/datasource-zabbix/utils.js

@@ -93,3 +93,8 @@ export function convertToZabbixAPIUrl(url) {
     return url.replace(trimSlashPattern, "$1");
   }
 }
+
+// Fix for backward compatibility with lodash 2.4
+if (!_.includes) {
+  _.includes = _.contains;
+}