Es6 cmp migration (#113)

* migrate Alert component

* convert Mainlist component

* add webpack watch task

* update build script for different manifests

* add types for api responses

* convert changeExtensionIcon

* convert inArray, getDomainParts, contains to ts

* convert changeExtensionTooltip

* convert changeExtensionState to ts

xclap.ts

@@ -41,6 +41,8 @@ load({
   'test-jest': [exec('jest --clearCache'), exec('jest --verbose --coverage')],
   'test-jest-update': exec('jest -u'),
   'test-js': 'phantomjs tests/run.js',
+  'watch-jest': exec('jest --watch'),
   webpack: [exec('webpack --mode production')],
   'webpack:dev': [exec('webpack --mode development')],
+  'webpack:watch': exec('webpack --mode development --watch'),
 });