[misc-uiautomation] Add reference file for html5-extra
[webapi][XWALK-893] Add extension for iap
[wrt][XWALK-890]update test.py

1.add checkdb.sh
2.add nagative seed
3.update test.py
[wrt] [XWALK-332] Update TC steps for xwalk-332
[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
Merge pull request #377 from yunxliu/yunxliu/webapi/change_iap_profiles

[webapi][XWALK-893] Add extension for iap
Merge pull request #392 from linshen/update-xwalk-890

[wrt][XWALK-890]update test.py
Merge pull request #393 from wanghongjuan/wanghongjuan/wrt/xwalk-332

[wrt] [XWALK-332] Update TC steps for xwalk-332
[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