Mongoengine

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- Fixed index spec inheritance (111)

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- Updated queryset.delete so you can use with skip / limit (107)
- Updated index creation allows kwargs to be passed through refs (104)
- Fixed Q object merge edge case (109)
- Fixed reloading on sharded documents (hmarr/mongoengine569)
- Added NotUniqueError for duplicate keys (62)
- Added custom collection / sequence naming for SequenceFields (92)
- Fixed UnboundLocalError in composite index with pk field (88)
- Updated ReferenceField's to optionally store ObjectId strings
this will become the default in 0.8 (89)
- Added FutureWarning - save will default to ``cascade=False`` in 0.8
- Added example of indexing embedded document fields (75)
- Fixed ImageField resizing when forcing size (80)
- Add flexibility for fields handling bad data (78)
- Embedded Documents no longer handle meta definitions
- Use weakref proxies in base lists / dicts (74)
- Improved queryset filtering (hmarr/mongoengine554)
- Fixed Dynamic Documents and Embedded Documents (hmarr/mongoengine561)
- Fixed abstract classes and shard keys (64)
- Fixed Python 2.5 support
- Added Python 3 support (thanks to Laine Heron)

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- Added support for distinct and db_alias (59)
- Improved support for chained querysets when constraining the same fields (hmarr/mongoengine554)
- Fixed BinaryField lookup re (48)

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- Added Binary support to UUID (47)
- Fixed MapField lookup for fields without declared lookups (46)
- Fixed BinaryField python value issue (48)
- Fixed SequenceField non numeric value lookup (41)
- Fixed queryset manager issue (52)
- Fixed FileField comparision (hmarr/mongoengine547)

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- Fixed recursion loading bug in _get_changed_fields

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- Fixed issue with custom queryset manager expecting explict variable names