OF-250: Allow to configure the groups of a user from the user profile

* simplified the UI
* added search for groups
* pagination for available groups
OF-189: Revert addition of PolicyUtils.java

See Jira ticket for license concerns
OF-421: Update to latest MINA release

Pick the latest bug fixes from Apache MINA 2.0,9
OF-850: Improve default initialization state

Minor changes to system utility classes to improve initial state of the
system, particularly during unit testing.
Merge pull request #113 from tevans/OF-850

OF-850: Improve default initialization state
Merge pull request #111 from akrherz/of189

OF-189: Revert addition of PolicyUtils.java
Merge pull request #112 from tevans/OF-421

OF-421: Update to latest MINA release
Merge pull request #102 from Redor/openfire

OF-250: Allow to configure the groups of a user from the user profile