StoreManager: when migration editing is done, validate the migration file and give the user an opportunity to fix mistakes
StoreManager: when migration editing is done, validate the migration file and give the user an opportunity to fix mistakes

Ignore-this: 3ad804c812e3116793c4d38fb46a356e

darcs-hash:20091112031644-e018d-7f5934b9503d87ec0d913d7326df2233e2660f0e.gz

anton-dessiatov/dbmigrations,creswick/dbmigrations,nathankot/dbmigrations,nick0x01/dbmigrations,jakubfijalkowski/dbmigrations