Merge pull request #3 from bwood/master

Readme note about cc all after manually enabling this feature
Add drupal_flush_all_caches() to ensure that the Users tab appears at /admin/dashboard. Move code out of features.inc, to prevent potential clobbering when we re-export the feature.
Remove note about the Users tab from the README
Merge pull request #5 from bwood/279-cc-users-tab

Fix missing tabs at admin/dashboard after enabling manually
Correct permissions for admin menu
Merge pull request #6 from bwood/openucb-279-adminmenu-perms

Correct permissions for admin menu