Removed category useless files and fix bug of no category message
Can link a workspace to a category
Updated workspace link page and workspaces list GUI
Update admin registration into workspace to handle workspace linked to category
Merge branch 'master' of https://github.com/claroline/CoreBundle into associate_workspace_to_category
Fixes GUI bug of workspace linked to incorrect category
Merge pull request #616 from solispauwels/master

close claroline/Claroline#602
Fixing workspace roles rights.
Removing useless semi colon.
Merge pull request #617 from ngodfraind/bugfix-manager.js

Fixing workspace roles rights.
bug from accu2014
delete method
Added accessibility date for resourceNode
Checked accessibility date in resource search
Initializes accessibility date with parent directory date
Avoid resetting paste bin state if delete action is cancelled
Merge pull request #620 from stefk/res-manager-fix

Avoid resetting paste bin state if delete action is cancelled
Merge pull request #618 from easy-es/password-change

bug from accu2014
Refactors accessibleTo into accessibleUntil
Merge pull request #622 from kitan1982/associate_workspace_to_category

Associate workspace to category