[usecase-webapi] Improve SystemInfo usecase

- Adjust the case with screen view

Impacted tests(approved): new 0, update 1, delete 0
Unit test platform: [Tizen IVI]
Unit test result summary: pass 1, fail 0, block 0
[usecase-webapi] improve ResourceTime w3c usecase

- Show image after loading it
- Use li to format the information

Impacted tests(designed|approved): new 0, update 1, delete 0
Unit test platform: [Tizen IVI][Android]
Unit test result summary: pass 1, fail 0, block 0
[usecase-webapi] Improve MediaQueries w3c usecase

- Update the content description
- Change the page interface and add details for every button

Impacted tests(approved): new 0, update 1, delete 0
Unit test platform: [Tizen IVI][Android]
Unit test result summary: pass 1, fail 0, block 0
[embedding][XWALK-1052] Leverage unit tests about XWalkExtension interface

- Add 3 cases about tests for extension api according to the developer's unit tests.

Impacted tests(approved): new 3, update 0, delete 0
Unit test platform: [Android]
Unit test result summary: pass 3, fail 0, block 0
[usecase-webapi][XWALK-2252] Correct the description of 5th subcase about Flexible

Impacted tests(approved): new 0, update 1, delete 0
Unit test platform: [Tizen IVI][Android]
Unit test result summary: pass 1, fail 0, block 0
[usecase-webapi] Improve FileSystem usecase

- Delete the exist file before creating the file again

Impacted tests(approved): new 0, update 1, delete 0
Unit test platform: [Tizen IVI]
Unit test result summary: pass 1, fail 0, block 0
[webapi] Fixed issue about vehicle for running white screen

- Some Makefile.am with wrong description need to update.
- Update tests.xml set vehicle to vehicleinfo
Merge pull request #664 from xinliux/xinliux/webapi/vehicle-makefile

[webapi] Fixed issue about vehicle for running white screen
[webapi][XWALK-1877] Fix config file of sso

- The result is same to before

Impacted tests(approved): New 0, Update 28, Delete 0
Unit test platform: [Tizen IVI]
Unit test result summary: Pass 0, Fail 18, Block 10
Merge pull request #663 from minxhuang/hm/webapi/sso-hotfix

[webapi][XWALK-1877] Fix config file of sso
Merge pull request #645 from zhuyongyong/yongzhu/embeddingAPI/leverage-unitTest

[embedding][XWALK-1052] Leverage unit tests about extension interface
Merge pull request #649 from zhuyongyong/yongzhu/usecase-webapi/flexibleBox-bug

[usecase-webapi][XWALK-2252] Correct the description about Flexible
Merge pull request #659 from yunxliu/yunxliu/misc/filesystem_update

[usecase-webapi] Improve FileSystem usecase
[webapi] Fix incorrect suite name in Makefile

 Impacted tests(approved): new 0, update 0, delete 0
 Unit test platform: [Tizen IVI]
 Unit test result summary: pass 1, fail 137, block 1
Merge pull request #665 from Honry/Honry/webapi-vehicleinfo-Makefile

[webapi] Fix incorrect suite name in Makefile
Merge pull request #637 from yunxliu/yunxliu/misc/systemInfo

[usecase-webapi] Improve SystemInfo usecase
Merge pull request #639 from zhuyongyong/yongzhu/usecase-webapi/mediaQueries

[usecase-webapi] Improve MediaQueries w3c usecase
[misc] Beautify xwalk-system-tests

- Move js/thirdparty/ to js/jquery/
- Lowercase all sub-directories
[misc] Comment out the test cases based on Blink test framework

- These tests should be uncommented when the Blink test framework works
[misc] Fixup issue of lowercase sub-directories

- Seems the 'id' is used to find the test file