First commit using the new interface that Mandy helped design. Most of the permissio...

First commit using the new interface that Mandy helped design.  Most of the permissions and front-end selection work, but there's still a wierd bug in the LDAP check for context type.  Next job is to generate tabular content.  Yay!

git-svn-id: https://svn.alkaloid.net/gpl/shout/trunk@45 06cd67b6-e706-0410-b29e-9de616bca6e9