Merge pull request #904 from ngodfraind/bugfixes

Add uniqid to publicurl.
message receiver name trimmed
Merge pull request #906 from ngodfraind/bugfixes

Fixing resource manager search redirection.
Reduces Role DB queries when rendering workspace tools list
Merge branch 'master' of https://github.com/claroline/CoreBundle into workspace-tool-list-role-upgrade
Merge pull request #907 from kitan1982/workspace-tool-list-role-upgrade

Reduces Role DB queries when rendering workspace tools list
Updating version of the portfolio bundle
Addds addChild method in ResourceNode
File mime type is now guessed from the extension
Merge pull request #908 from maxailloud/update-portfolio

Updating version of the portfolio bundle
Merge pull request #909 from kitan1982/resource-node-add-methods

Adds addChild method in ResourceNode
Rich textes can be imported (draft)
Merge branch 'master' of https://github.com/claroline/CoreBundle
Merge pull request #910 from ngodfraind/master

Rich text support fort text widget
Fixing calendar short months short name.
Merge pull request #911 from ngodfraind/master

Fixing calendar short months short name.
Notifications can be deactivated.
Merge pull request #912 from ngodfraind/master

Notifications can be deactivated.
Fixing google meta tag regex.
Merge pull request #913 from ngodfraind/master

Fixing google meta tag regex.