[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-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
[tools]Update stats.py to save the result in a csv file

Update the ref and bdd tests coverage
Update the Upstream test coverage
Output the result to coverage.csv
[usecase-embedding] Modify tests.android.xml and tests.full.xml

Impacted tests(approved): new 0, update 0, delete 0
Unit test platform: [Android]
Unit test result summary: pass 14, fail 1, block 0
[webapi]Add reference entry for reftest
Merge pull request #1266 from chenxix/webapi/repair-canvas

[webapi]Add reference entry for reftest
Merge pull request #1264 from zhuyongyong/embeddingApi-usecase/modTestXml

[usecase-embedding] Modify tests.android.xml and tests.full.xml
Merge pull request #1262 from zhuyongyong/embeddingApi-tests/modTestsXml

[embedding] Modify tests.xml according the latest version of testkit
[wrt] Add subcase to manifest and packtertool suite
Merge pull request #1267 from wanghongjuan/wrt/update-tests.full.xml

[wrt] Add subcase to manifest and packtertool suite
Merge pull request #1250 from chenxix/tools/modify-coverage-script

[tools]Update stats.py to save the result in a csv file
[webapi] Update 56 designed cases to approved for audio

- Modify tests.full.xml and tests.xml

Impacted tests(approved): new 56, update 0, delete 12
Unit test platform: [IVI] crosswalk-10.38.222, t-e-c 0.107
Unit test result summary: pass 1, fail 24, block 31