Merge pull request #51 from adoulrac/selim/picturesDisplay

Ajout d'image bug fixed
Merge pull request #52 from adoulrac/selim/picturesDisplay

My pictures can be deleted. Add of glow effect for picture selection.
Merge pull request #53 from adoulrac/selim/picturesDisplay

Delete button disabled if no selection.
Groups view modifs.
Merge pull request #54 from adoulrac/arthur/gestion_groupes

Groups view modifs.
Merge pull request #55 from adoulrac/selim/picturesDisplay

Multiple changes in Pictures display handling. User avatar added. AllPic...
Unused imports removed. Should not throw exception if no avatar