[misc][XWALK-2231] Integrate MediaSource API Demo

- https://github.com/ebidel/html5demos/blob/master/html5-demos.appspot.com/static/media-source.html
  under the Apache License, Version 2.0
- Bug  https://crosswalk-project.org/jira/browse/XWALK-2231
- Task https://crosswalk-project.org/jira/browse/XWALK-2331
[misc] Comment out google fonts and analytics dependency
Update the pack script and suite json to latest version
Merge pull request #781 from yugang/yugang/update-py-coding-style

Update the pack script and suite json to latest version
[webapi][XWALK-2368] Update BlobBuilder to Blob

 - BlobBuilder is deprecated
 https://crosswalk-project.org/jira/browse/XWALK-2368
Merge pull request #765 from yunxiaoxie/yunxiaoxie/BlobBuilder

[webapi] Update BlobBuilder to Blob
Update pack.py coding style for pylint's output
Merge pull request #782 from yugang/yugang/update-py-coding-style

Update pack.py coding style for pylint's output
[usecase-webapi] Merge tizen and w3c to usecase

- Merge webapi-usecase-tizen-tests and webapi-usecase-w3c-tests to webapi-usecase-tests
- Test platform: Tizen IVI and Android, app can run well on these two platform
[wrt] Remove 97 duplicated cases in wrt-rtcoremanu-android-tests
[wrt] Remove 103 duplicated cases in wrt-packertoolmanu-android-tests
[wrt] Add 6 TCs to manifestspecificmanu

Impacted TCs num(approved): New 6, Update 0, Delete 0
Unit test Platform: Android
Android test result summary: Pass 6, Fail 0, Block 0
[WRT] Add python packagement files

Signed-off-by: Hao yunfeix <yunfeix.hao@intel.com>
Merge pull request #776 from xinliux/xinliux/usecase/MergeTizen

[usecase-webapi] Merge tizen and w3c to usecase
Merge pull request #783 from kangxu/kangxu/wrt/wrt-rtcoremanu-android-tests/removeDuplicated

[wrt] Remove 97 duplicated cases in wrt-rtcoremanu-android-tests
Merge pull request #756 from haoyunfeix/yunfei/wrt-add-python-packagement-files

[WRT] Add python packagement files
Merge pull request #785 from wanghongjuan/wanghongjuan/wrt/add-manifest-manu

[wrt] Add 6 TCs to manifestspecificmanu
Merge pull request #784 from kangxu/kangxu/wrt/wrt-packertoolmanu-android-tests/removeDuplicated

[wrt] Remove 103 duplicated cases in wrt-packertoolmanu-android-tests
[webapi][XWALK-2313] Adding set landscape-primary orientation atfer 100s  for screenorientation

- When lock orientation to "portrait-primary", if can't fire event, after 100 ms, lock orientation to "landscape-primary"
- Failure reason: We test on IVI, onorientationchange event can't invoked.

Impacted TCs num(approved): New 0, Update 1, Delete 0
Unit test Platform: Tizen IVI
Tizen test result summary: Pass 0, Fail 1, Blocked 0
[webapi][XWALK-2312] Fixed vconftool permission for geoallow

- vconftool command need root permission, so excute this command as pre-condition
- Remove testconfig tests.full.xml and tests.xml not accepteable TBD

Impacted TCs num(approved): New 0, Update 0, Delete 0
Unit test Platform: Tizen IVI
Tizen test result summary: Pass 99, Fail 105, Blocked 7