1.0.5
- fixed PositiveIntegerField and PositiveSmallIntegerField issues at db_type

1.0.4
- Allow non-postgres databases to work too (daleobrien)
- Allow the use of fields that requires pre-processing (sruon)

1.0.3
- added support for ARRAY types and refactored GenericIPAddressField & IPAddressField.

1.0.2
- added performance tests

1.0.1
- GenericIPAddressField and IPAddressField fixes

1.0.0
- added batch_size option
- performance improvements
