Support seeding of Dialogs

/cc @gmcculloug 

Related BZ:
https://bugzilla.redhat.com/show_bug.cgi?id=1155806
Any reason we can't just seed the region?  It's only one record and relatively inexpensive.  You know me, and I'm concerned about all the stubbing.  In this case, especially because the code you wrote locks on that DB record, so I think it should *really* lock on a database record to validate the code properly.