Merge pull request #3351 from Hanks10100/feature/cleanup

[js] clean up front-end assets and fix test

Author: jianhan-he

.gitignore

@@ -6,7 +6,6 @@
 *.sw*
 
 # Created by Builder
-examples/build
 web-entry
 test/build
 weex_tmp
@@ -26,22 +25,6 @@ pids
 *.pid
 *.seed
 
-# e2e test
-html5/test/e2e/reports
-html5/test/e2e/screenshots
-html5/test/e2e/logs
-
-# render test
-html5/test/render/vue/data/build
-examples/vue/test/
-
-# Created by Weex Web Packer
-html5/browser/extend/packer.js
-html5/render/browser/extend/packer.js
-
-# Created by weex-vue-bundle-util
-weex-vue-plugins.js
-
 android/playground/app/gradlew
 android/playground/app/gradlew.bat
 android/playground/app/gradle/wrapper/gradle-wrapper.jar