Updates with no operator should default to $set Fix #667
Allowed failures for Django development version.
Python 2.6 requires positioning by number of fragments in format.

This commit will restore Python 2.6 compatability.
Fix for post_init signal to receive correct state of _created flag.
Fix setting of _created flag in base.Document constructor
Add testcase
Update querying.rst
Merge pull request #635 from SergeChmelev/master

Fix for post_init signal to receive correct state of _created flag.
Merge pull request #692 from rochacbruno/master

Updates with no operator should default to $set Fix #667
Added @rochacbrun to the AUTHORS file. #692
Follow ReferenceFields in EmbeddedDocuments with select_related

For the following structure:

    class Playlist(Document):
        items = ListField(EmbeddedDocumentField("PlaylistItem"))

    class PlaylistItem(EmbeddedDocument):
        song = ReferenceField("Song")

    class Song(Document):
        title = StringField()

this patch prevents the N+1 queries otherwise required to fetch all
the `Song` instances referenced by all the `PlaylistItem`s.
Merge pull request #690 from claymation/select-related

Follow ReferenceFields in EmbeddedDocuments with select_related
Fix tests for Django 1.7
Update AUTHORS
Prevent accessing not yet configured settings in django.MongoTestCase
Fix MongoTestCase and add test for it
Fix MongoTestCase and add test for it
Update changelog
Merge pull request #696 from lexqt/fix_django_17_compat

Fix tests for django 1.7
adding capability to extract json (to_json) using the field names and instead of the defined db_names, if those are set