[misc-sanity] Fix XWALK-1310 by updating notification close method
[webapi] Add -manual to presentation tests
[webapi] Sync Canvas tests with latest W3C web-platform-tests
[webapi] Add <spec>-py subdirectory to 10 test suites

for the web testing service
[webapi] Rename mediacapture manual tests
[webapi] Fix XWALK-1479 by update vibration file name for running
[webapi] Add spec.json and update spec_desc
Merge pull request #156 from haoxli/haoxli/webapi/spec-json

[webapi] Add spec.json and update spec_desc
Merge pull request #134 from xinliux/xinliux/vibration-array

[webapi] Fix XWALK-1479 by update vibration file name for running
Merge pull request #136 from xinliux/xinliux/misc/notification-close

[misc-sanity] Fix XWALK-1310 by changing notification cancel to close method