1. removed unneccessary header imports
2. notify online app the current platform by appending querystring to launch url

[git-p4: depot-paths = "//xFace-Apollo/branches/openxface-ios/": change = 17068]
Removed warnings sent by jslint

[git-p4: depot-paths = "//xFace-Apollo/branches/openxface-ios/": change = 17069]