Version bump 0.8.7 => 0.9.0
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Add Document.modify() method
Drop unnecessary id=ObjectId() in document creation
Make `in_bulk()` respect `no_dereference()`
fix-#789: abstract shouldn't be inherited in EmbeddedDocument
Merge pull request #790 from DavidBord/fix-789

fix-#789: abstract shouldn't be inherited in EmbeddedDocument
fix-#778: Add Support For MongoDB 2.6.X's maxTimeMS
Merge pull request #779 from DavidBord/fix-778

fix-#778: Add Support For MongoDB 2.6.X's maxTimeMS
Fix the documentation for reverse_delete_rule.
Adding myself to AUTHORS and CHANGELOG
Merge pull request #791 from czarneckid/fix-reverse-delete-rule-documentation

Fix the documentation for reverse_delete_rule.
Merge pull request #772 from shuuji3/patch-1

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Merge pull request #770 from yjaaidi/patch-1

Version bump 0.8.7 => 0.9.0
Merge remote-tracking branch 'upstream/master' into pr-document-modify
Add #773 to changelog
Mention Document.modify() in the documentation
Merge pull request #773 from KonishchevDmitry/pr-document-modify

Add Document.modify() method
Merge pull request #775 from claymation/in_bulk_honors_no_dereference

Make `in_bulk()` respect `no_dereference()`
Update changelog.rst