Merge pull request #847 from ngodfraind/bugfixes

Bugfixes
Adds search on workspaces list and registration list
Merge pull request #848 from kitan1982/master

Adds search on workspaces list and registration list
Merge pull request #849 from ngodfraind/bugfixes

Bugfixes
Fixes competence bug when registering user to workspace
Merge pull request #850 from kitan1982/competences-bugfix

Fixes competence bug when registering user to workspace
Merge branch 'master' of https://github.com/claroline/CoreBundle into bugfixes
Fixing workspaceUsers.html.twig javascripts
Fixing calendar export name.