Changing the firewall and the top_bar for anonymous users
Removing the firewall + anonymous user has ROLE_ANONYMOUS
fixed a todo
Refactoring the role system for workspaces (new Voter, table, ROLE_ANONYMOUS)
Merge branch 'master' of https://github.com/claroline/Claroline
anonymous can see public workspaces
Anonymous management for resources + workspace permissions management
merge
Merge branch 'master' of https://github.com/claroline/Claroline

Conflicts:
	src/core/Claroline/CoreBundle/Migrations/Version20120119000000.php