Doctrine Migrate functions for current version and for creating the migrations table

I always tend to find myself needing to implement migrations after the fact. It would be really nice to have a method of having doctrine creating the migration_version table as well as a method of setting that value and getting that value.

This would in-turn allow the implementation in a framework such as symfony to allow you insert the table after the fact, allow you to update the migration version without running the migration and to let you know what version you're currently on.