Modify question group auto notification
Merge branch 'develop' into release/fcr2013

Conflicts:
	requirements.txt
Rewrite again auto notification
And again ...
Transform signal into celery task
Merge pull request #130 from SimonSarazin/master

Reduced email template alert
merged release/fcr2013
Merge pull request #133 from freddylimpens/master

merging latest fix for group notifications