Use the role hierarchy to get user roles.

Fix for issue #282
Add test cases for AclHelpers
Merge pull request #284 from JoakimLofgren/add-role-hierarchy-support

Support role hierarchies
Fix so anonymous user works in frontend
Add unit tests for anonymous user
Merge pull request #287 from JoakimLofgren/fix-acl-helper

Fix acl helper
Added outline color to empty rich textbox
Merge pull request #288 from Kunstmaan/issue_errorclass_richtextbox

Added outline color to empty rich textbox
Increase minimum stability of this bundle, and try to use only stable tagged versions of dependencies. Targetted at Symfony 2.3 and the 2.3 series of Kunstmaan bundles.
Merge pull request #289 from roderik/master

Increase minimum stability of this bundle, and try to use only stable tagged versions of dependencies. Targetted at Symfony 2.3 and the 2.3 series of Kunstmaan bundles.
Update README.md
fix unit test for stable version
Update composer.json
Allow Symfony 2.4 and higher
Merge pull request #291 from Kunstmaan/feature/move-to-2.4-and-beyond

Allow Symfony 2.4 and higher
support indexed arrays in filters
Merge pull request #293 from Kunstmaan/support-indexed-arrays-in-filter

support indexed arrays in filters
Allow to override the admin dashboard (for use with the DashboardBundle)
faster acl query
performance improvements: added db indexes