MISC: added CT specific permissions, enabled moderation, dependency to roles/users added

## Ready State: Yes

https://imagex.atlassian.net/browse/LDC-115
https://imagex.atlassian.net/browse/LDC-125

## Requirements & Dependencies

* imagex_users_roles_permissions

## Deployment Instructions

* Merge code.

## Usage/Test Instructions

* On install, confirm permissions are correctly set for imagex_group