Ensured css files are generated outside the bundle in case symlinks are used for assets
Added web sub-directories creation to installer
Removed generated directories from permission checks
Fixed bug for notification item view
Merge remote-tracking branch 'upstream/master'
Merge pull request #603 from ptsavdar/master

Fixed bug in notification item list (issue #490 in claroline/Claroline project)
Removing text history.
Merge pull request #605 from stefk/web-dir

Simplify assets permissions
Merge pull request #606 from ngodfraind/master

Removing text history.
Merge branch 'master' of https://github.com/claroline/CoreBundle into associate_workspace_to_category