[#101] Added primary navigation feature to profile requirements
[#101] Remove references to the primary navigation module and disable_default_groups_view module. These didn't work
[#101] Added uas_maintenance module. This currently houses the default views override for og_extras_groups.
[#101] Updated Groups view
[#101] Added primary navigation block
[#101] Updated features with the primary navigation block
[#101] Updated basic page context to include primary navigation menu
[#101] Updated main navigation with new groups link