[misc-uiautomation] Add reference file for html5-extra
[webapi] Update 52 Tcs for nativefilesystem
- On android phone and tizen IVI support diffent dir lists. Cannot
  make sure which dir is supported on device, so test dirs one by one

Impacted tests(approved): new 0, update 52, delete 0
Unit test platform: [Android][Tizen IVI]
Unit test result summary: pass 52, fail 0, block 0
[wrt][XWALK-2028] Add 2 tcs

Update webapp is fail
Merge pull request #337 from chenxix/chenxi/misc-uiautomation/html5-extra

[misc-uiautomation] Add reference file for html5-extra
Merge pull request #384 from yunxliu/yunxliu/webapi/change_iap_dir

[webapi] Update 52 Tcs for nativefilesystem
Merge pull request #397 from linshen/add-tcs-for-xwalk-2028

[wrt][XWALK-2028] Add 2 tcs