text: Title: enforcing message conventions while generating migrations
  Body: **Migrated issue, originally created by Sandeep Srinivasa ([@sandys](https://github.com/sandys))**
  
  im trying to set something to enforce some message pattern conventions while creating migrations.
  
  eg.
  
  1. message is mandatory
  2. it should contain bug#<number> 
  
  just like log pattern, this can be a message pattern
  
  