[webtestingservice] Upate webtestingservice for adding pack scripts.
Update user guide a little more to reflect validation feedback
[doc]Update Web_Testing_Service_User_Guide_v1.0 by adding how to pack wts-version.zip.
Merge pull request #12 from BruceDai/master

[webtestingservice] Upate webtestingservice for adding pack scripts.
[misc-sanity] Remove the input for WebGL
Merge pull request #20 from JianfengXu/xujfx/misc-sanity/WebGL

[misc-sanity] Remove the input for WebGL