Log Message:
0.27.9 (2014-12-01)
^^^^^^^^^^^^^^^^^^^

- Fixed aggregated decorator many-to-many relationship handling
- Fixed aggregated column alias handling

0.27.8 (2014-11-13)
^^^^^^^^^^^^^^^^^^^

- Added is_loaded utility function
- Removed deprecated has_any_changes

0.27.7 (2014-11-03)
^^^^^^^^^^^^^^^^^^^

- Added support for Column and ColumnEntity objects in get_mapper
- Made make_order_by_deterministic add deterministic column more aggressively

0.27.6 (2014-10-29)
^^^^^^^^^^^^^^^^^^^

- Fixed assert_max_length not working with non nullable columns
- Add PostgreSQL < 9.2 support for drop_database