Added the "actionCreate" and "actionDelete" of the questionsController
removed application.log from git tracker
Added the functionnality to delete a question from a survey.
NOT COMPLETELY FINISHED ! I have to ask some questions to P. Hurni
Improved the "beforeDelete()" function of Question model and corrected a comment
Activated the Jquery functionnalities
Added the "Add a question to my survey" functionnality
Merge branch 'dev' into FireGhostTesting
Optimised version of "Add a question"
Added a useful comment in the QuestionsController
Merge branch 'dev' of https://github.com/FireGhost/app_surveys into dev

Conflicts:
	protected/controllers/QuestionsController.php