Refactored to use namespaces
Merge pull request #642 from zikula/permissions_poc

[POC] for namespaced modules.
Refactored DBUtil to Doctrine 2
Merge pull request #657 from drak/permissions_doctrine

Refactor Permissions module to Doctrine
Correct typo
Add some convenience methods.

This is more to help with back porting code from 2.0
remove unused imports.
Merge branch '1.3'