Fix #43 - Swapped project_name for project.
Fix #86 - Entity objects from a fetched query have a proper Dataset reference.
Merge pull request #87 from jgeewax/86-fix-dataset-reference

Fix #86 - Entity objects from a query have a proper Dataset reference
Merge pull request #85 from jgeewax/master

Fix #80 - Added support for ancestor queries.
Merge pull request #74 from kleyow/swap

Fix #43 - Swapped project_name for project.