[behavior] Update the framework of behavior

Base on WEBQA-52, add the function that save the test result of child TCs.
Sync with sanity app, but keep the export button.

Comment: Now only the child TCs under WRT sort can show the test result.
[webapi] Fix XWALK-1409 for not follow spec
[webapi] Fix the xml issue of rawsockets
Fix the case issue of BufferedAmount
[webapi] Add basic filesystemapi TCs instead of IDL for existent checkpoint
Fix the case issue of basic check in TCPSocket and UDPSocket
[wrt] [XWALK-1043] Add tcs for multiple instances of XWalkView
[behavior] Update wgt installation path for IVI
[wrt] [XWALK-1353] Support xwalk_hosts field in manifest
[webapi] Update spec_desc in spec.json
[wrt] Update app name for rtcore CombinationValue TC
[webapi] Update the copyright version to 2014
Merge pull request #174 from haoxli/haoxli/webapi/spec-desc

[webapi] Update spec_desc in spec.json
[Cordova] Add 1 new test and update steps in tests.xml
Merge pull request #176 from Honry/Honry/cordova-mobilespec

[Cordova] Add 1 new test and update steps in tests.xml
[wrt] Update 3 cases descrition about if there is space in name option
[wrt] [XWALK-836] Update the designed case to approved status
[behavior] Improve Viewport to avoid iframe limit
[misc-sanity] Update SessionHistory description
Merge pull request #171 from haoxli/haoxli/behavior/wgt-for-ivi

[behavior] Update wgt installation path for IVI