[wrt]Add setting:context-menu to usecase

[Detailed commit message (if have)]
Impacted TCs num(approved):New 1,Update 0,Delete 0
UT result: Do UT after image is ok
[webapi] Update 54 designed cases to approved for video

- Modify tests.full.xml and tests.xml
- Add support/videoelement.js

Impacted tests(approved): new 54, update 0, delete 12
Unit test platform: [IVI] crosswalk-10.38.222, t-e-c 0.107
Unit test result summary: pass 2, fail 24, block 28
[webapi][XWALK-2965] Fix new case file name in tests xml

- Update tests.full.xml and tests.xml
[webapi][XWALK-2956] Fix tests xml ref set cases no entry

- Move 11 cases from ref set to js set
[stability] update 2tcs

[Detailed commit message (if have)]
Impacted TCs num(approved):New 1,Update 2,Delete 0
UT result: Pass 2, Fail 0, Block 0
Merge pull request #1253 from xinliux/flexiblebox/XWALK-2956

[webapi][XWALK-2956] Fix tests xml ref set cases no entry
Merge pull request #1252 from xinliux/vibration/XWALK-2965

[webapi][XWALK-2965] Fix new case file name in tests xml
Merge pull request #1254 from linshen/shenlin/update-tcs

[stability] update 2tcs
[stability]Update tests.full.xml for wrt-stabiterative-android-tests

Android test result summary: Pass 1, Fail 0, Block 0
Merge pull request #1255 from wanghongjuan/stability/stabiterative

[stability]Update tests.full.xml for wrt-stabiterative-android-tests
[stability]update tests.full.xml
update execution_type="auto" no need UT
[webapi][xwalk-3001] Remove test suite of HTML Templates

- There is no feature requirement in this JIRA system for the HTML Templates, so only check this feature by usecase https://github.com/crosswalk-project/demo-express/tree/master/samples/HTMLTemplate
Merge pull request #1258 from haoxli/webapi/xwalk-3001

[webapi][xwalk-3001] Remove test suite of HTML Templates
[webapi][xwalk-1326] Remove test suite of CSS Style Attribute

- The feature for CSS Style Attribute (http://www.w3.org/TR/2013/REC-css-style-attr-20131107/) has been dropped, so remove this test suite.
[webapi][xwalk-3001] Remove HTML Templates test suite from pack script

- The test suite of HTML Templates have been removed in PR#1258
Merge pull request #1260 from haoxli/webapi/xwalk-1326

[webapi][xwalk-1326] Remove test suite of CSS Style Attribute
Merge pull request #1259 from haoxli/webapi/xwalk-3001-2

[webapi][xwalk-3001] Remove HTML Templates test suite from pack script
Merge pull request #1233 from linshen/shenlin/update-xwalk1491

[wrt]Add setting:context-menu to usecase
[embedding] Modify tests.xml according the latest version of testkit-lite

Impacted tests(approved): new 0, update 0, delete 0
Unit test platform: [Android]
Unit test result summary: pass 99, fail 12, block 0
[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