New error message - WIP
refactoring tests for the new error messags
remove commented-out lines
White-space fascism
Merge branch 'master' into error_msgs
Merge pull request #343 from ministryofjustice/error_msgs

New Error messages
Added missing comma.
Link to AD technical help page added

This is an interim solution, will be changed once the moj_template
toolkit is updated.
Copy change

as per:
https://www.pivotaltracker.com/story/show/74849450
Removing duplicate text for copy change
Copy changes

as per ticket:
https://www.pivotaltracker.com/story/show/74844320
Removing the link to AD technical help page

Clive has fixed it in his branch, so this hack is no longer needed