[webapi][XWALK-2277] Fix the bug that fail to found TC when running sso

Impacted tests(approved): New 0, Update 23, Delete 0
Unit test platform: [Tizen IVI]
Unit test result summary: Pass 0, Fail 23, Block 0
[usecase-webapi][XWALK-2406]Update test steps description for Content

- Fail Reason: When ran getDirectories method, neither callback was invoked.

Impacted TCs num(approved): New 0, Update 1, Delete 0
Unit test Platform: [Tizen IVI]
Unit test result summary: Pass 0, Fail 1, Blocked 0
[webapi][XWALK-2363] Fix issue by using regexp to verify nativeAPIVersion of SystemInfo

- Because IVI platform version may be change, but TC set default nativeAPIVersion 2.2, so update version verfy by regexp.

Impacted TCs num(approved): New 0, Update 1, Delete 0
Unit test Platform: Tizen IVI
Tizen test result summary: Pass 1, Fail 0, Blocked 0
[embedding][XWALK-2239] Add one usecase to verfiy animatible.

- Add one usecase to verfiy animatible by leveraging developer's sample.
- Remove the redundant LoadAppFromManifestActivity.java and XWalkEmbeddingAPISample.java code.

Impacted tests(approved): new 1, update 0, delete 0
Unit test platform: [Android]
Unit test result summary: pass 1, fail 0, block 0
[usecase-embedding][XWALK-2327] Add one testpoint for show and hide in embedding sample.

- Add one testpoint in embedding sample for onshow and onhide.
- Remove the unserviceable code because XWalkView has done these.
- Change the url for OnHideOnShowActivity.

Impacted tests(approved): new 0, update 1, delete 0
Unit test platform: [Android]
Unit test result summary: pass 1, fail 0, block 0
[embedding][XWALK-2238] Add and update test cases for calling JS function and using XHR requests in XWalkView.

- Add test 2 cases for calling JS function with load and using XHR requests in XWalkView.
- Update 1 case for calling JS function with evaluateJavascript.

Impacted tests(approved): new 2, update 1, delete 0
Unit test platform: [Android]
Unit test result summary: pass 3, fail 0, block 0
[webapi][XWALK-2372] Update screen orientation tests to reflect chromium 38 implementation

- Update screen orientation follow latest spec: http://w3c.github.io/screen-orientation/
- Failure reason: lock(), unlock(), type, angle and onchange all attributes of ScreenOrientation are undefined.

Impacted TCs num(approved): New 0, Update 14, Delete 0
Unit test Platform: Tizen IVI
Tizen test result summary: Pass 2, Fail 12, Blocked 0
[xwalkdriver] Update activity name for crosswalk android package rule changed
[sample] Remove pass and fail image
Merge pull request #855 from Honry/Honry/sample-remove-pass-fail-image

[sample] Remove pass and fail image
[usecase-wrt] Add usecases for wrt android
[XWALK-2489] Remove the filesupport.js
Remove sample/

These samples are at
https://github.com/crosswalk-project/demo-express

Close #858
Merge pull request #859 from yunxiaoxie/yunxiaoxie/filereader_constructor_base

[XWALK-2489] Remove the filesupport.js
Merge pull request #857 from yunxiaoxie/yunxiaoxie/packRule

[xwalkdriver] Update activity name for crosswalk android package rule changed
Merge pull request #814 from xinliux/xinliux/webapi/XWALK-2372

[webapi][XWALK-2372] Update screen orientation tests to reflect chromium...
[webapi][XWALK-2372] Update screen orientation tests

to reflect Chromium 38 implementation at XWALK-2431
https://w3c.github.io/screen-orientation/
[usecase][XWALK-2372] Update screen orientation tests

to reflect Chromium 38 implementation at XWALK-2431
https://w3c.github.io/screen-orientation/
Merge pull request #860 from zqzhang/screen-orientation

[XWALK-2372] Update screen orientation tests
[webapi][xwallk-2123] Sync tests update for web testing service

- Update error name form NotSupportedError to TypeError, changes merged in https://github.com/crosswalk-project/crosswalk-test-suite/pull/828