Fixed issue with ObjectId not handled properly with Swagger code.

Issue where the ObjectId object is not defined in Swagger.js.

Added a way to only get the filters from the model.

Merge pull request travist#104 from travist/fixed-null-query

Updated build to fix null queries.

Updated build.

Updated dependencies and version bump.

1.33.0

Do not call stringify on object being updated.

Now using lean() to improve performance of index and get queries.

1.30.0