Set a limit on dc:title length

There is no limit length for dc:title and there was an issue where customer had several documents that had entire email saved in dc:title field.  This caused problems in Mongo when trying to create index on dc:title and it failed due to it being too long

errMsg:"WiredTigerIndex::insert: key too large to index, failing 1576 
 { : \"Hello Jon, hank you for allowing me to assist you with your property claim. 
 Your completed repair paperwork is attached to this email. We have...\", 
 : null, : null }"