Use MAS version of ckeditor gem
Mount ckeditor under admin namespace
Picture page authorization
Delete routes to admin controller which dont exist

These admin controllers don't exist:

* comments
* general
* trackbacks
Merge pull request #37 from moneyadviceservice/delete-non-existent-admin-controller-routes

Delete routes to admin controller which dont exist
remove unnecessary action
Merge pull request #36 from moneyadviceservice/admin-ckeditor

Admin ckeditor authorization
Remove routes file code offenses
Merge pull request #38 from moneyadviceservice/remove-routes-code-offenses

Remove routes file code offenses
DRY up admin cache routes
Merge pull request #39 from moneyadviceservice/dry-admin-cache-routes

DRY up admin cache routes
Add flags table
Add Flag model & define relationship with Feedback
Add endpoint to allow flagging of comments
Add scope to find flagged feedback
Link to flagged feedback from dashboard