You have to walk old dbs through stable releases.

Change-Id: Ibec1b0277846f40c0a8dcc08dd7128c3033b8449
Pass the DB name as well, get the schema version check command right.

Change-Id: I3fdab7ec46aff6f9ba395701fbe6d47b66d741bc
Fix path to old style nova manage

Change-Id: I125056b7c8ddfc41ecb4bf74b4536cba3b9a5acf
Only walk back to the start of trunk

Change-Id: I54b326f0dfb7ec82aa6ac4d58863adf3608a42e2
Support aborting early.

Change-Id: I399936406f16b0357400cae20a1ee1061a61d9b3