[webapi] Integrate 149 tests for FileSystemAPI

Impacted tests(approved): new 149, update 0, delete 0
Unit test platform: [Android]
Unit test result summary: pass 149, fail 0, block 0
[usecase][xwalk-1326] Backup usecase of CSS Style Attribute

- This test case will be removed from demo-express(https://github.com/crosswalk-project/demo-express/pull/30), backup it as 'designed' in usecase
[webapi] Add 10 P2 tests for Battery Status API

Impacted tests(approved): new 10, update 0, delete 0
Unit test platform: [Android]
Unit test result summary: pass 10, fail 0, block 0
[webapi] Integrate 23 tests for CSS3 Transitions

 - These tests come frome http://svn.webkit.org/repository/webkit/trunk/LayoutTests/transitions/

Impacted tests(approved): new 23, update 0, delete 0
Unit test platform: [Android]
Unit test result summary: pass 23, fail 0, block 0
[webapi][XWALK-2865] Intgrate 76 SIMD tests from upstream

Fail Reason: the new feature is not implemented.

Impacted TCs num(approved): New 76, Update 0, Delete 0
Unit test Platform: [Andriod]
Unit test result summary: Pass 0, Fail 76, Blocked 0
[webapi] Add new suite for picture element
Impacted tests(approved): new 1, update 0, delete 0
Unit test platform: [IVI][Android]
Unit test result summary: pass 1, fail 0, block 0
Merge pull request #1346 from JianfengXu/simd/2865

[webapi][XWALK-2865] Intgrate 76 SIMD tests from upstream
Merge pull request #1339 from yunxiaoxie/move-up-transitions

[webapi] Integrate 23 tests for CSS3 Transitions
Merge pull request #1338 from kangxu/kangxu/webapi/pictureElement/new

[webapi] Add new suite for picture element
Merge pull request #1323 from haoxli/usecase/xwalk-1326

[usecase][xwalk-1326] Backup usecase of CSS Style Attribute
Merge pull request #1298 from kangxu/kangxu/webapi/tct-batterystatus-w3c-tests/fixGap

[webapi] Add 10 P2 tests for Battery Status API
Merge pull request #1224 from yunxiaoxie/move-filesystemapi

[webapi] Integrate 149 tests for FileSystemAPI
[wrt]Update category value of all tests*.xml
Merge pull request #1364 from wanghongjuan/wrt/update-xml-category

[wrt]Update category value of all tests*.xml