Bug 8836 [QA Followup] - Prevent multiple collections from having the same title

Bug 8836 [QA Followup] - Prevent multiple collections from having the same title

Signed-off-by: Owen Leonard <oleonard@myacpl.org>
This works, and so I'll sign off, but I'm not crazy about the workflow.
Having the error message display on an otherwise empty page is not user
friendly. The entry form should be redisplayed so that the user can
modify the data they submitted.

That really should be changed in a follow-up.

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>