Warning
Backward incompatible changes:
- migrate.versioning.api.test() and schema comparison functions
now all accept url as first parameter and repository as second.
- python upgrade/downgrade scripts do not import migrate_engine
magically, but recieve engine as the only parameter to function (eg.
def upgrade(migrate_engine):)
- Column.alter
does not accept current_name anymore, it extracts name from the old
column.