Update SurveyTest source code
Clean code of Survey module
Improve some features (like errors in forms)
Clean source code of FAQ module
Clean source code of Notification module
Clean source code of the News module
Clean source code of Mail module
Faq module is now totally ported to new version
End of News module porting
End of Mail module porting
Hide faq_id and category_id from user
Remove comments
Merge pull request #170 from GuillaumeGomez/master

Clean modules' source code