[webapi] Add 52 TCs for native file api
Impacted Suites: webapi-nativefilesystem-xwalk-tests
Impacted TCs num: New 52, update 0, deleted 0
Unit test Platform: IVI
IVI test result summary: Pass 0, Fail 52, Blocked 0

Fail Reason:
All cases are designed, because the Native File API is not ready. Jira link: https://crosswalk-project.org/jira/browse/XWALK-672
[misc-usecase] Update the description of webspeech
[misc] add usecase for gamepad

Impacted Suites: webapi-usecase-w3c-tests
Impacted TCs num: New 0, Update 1, Delete 0
Unit test Platform: Andriod
Andriod test result summary: Pass 0, Fail 1, Blocked 0

Comments:
1. Because gamepad feature moved to V8, so change the status to designed.
2. Tizen is not support this API.
[wrt] update wrt-common-web-app upper to lower
Merge pull request #265 from linshen/update-wrt-common-webapp-test

[wrt] update wrt-common-web-app upper to lower
Remove webtestingservice introduction

- See https://github.com/crosswalk-project/web-testing-service
Merge pull request #270 from zqzhang/zqzhang/readme-wts

Remove webtestingservice introduction
[wrt] Update pack and configure for tizen auto
Merge pull request #244 from JianfengXu/xujf/misc/gamepad

[misc] add sample app for gamepad
[webapi] Add back 6 tests for Web Storage and remove 5 tests

- The removed tests have been covered by W3C tests

Impacted tests: new 6, update 0, delete 5
Unit test platform: IVI
Unit test result summary: pass 6, fail 0, blocked 0
[webapi] Add back 2 tests for WebGL from Khronos

- If Img domain and page domain are not the same, webgl disallows uploading.
- The implementation doesn't follw the spec.

Impacted tests: new 2, update 0, deleted 0
Unit test Platform: Tizen ?
Unit test result summary: pass 1, fail 1, block 0
Merge pull request #271 from kangxu/kangxu/wrt/tizenauto/updatePackScripts

[wrt] Update pack and configure for tizen auto
Merge pull request #190 from yunxliu/yunxliu/webapi/webapi-filesystem-xwalk-tests

[webapi] Add 52 TCs for native file api
Merge pull request #254 from jshentux/jshentux/misc/sanity-webspeech-update

[misc-sanity] Update the description of webspeech