#493 definition['type'] throws exception

 definition['type'] == 'media', since this seems to be a check if media fields are present, I think the get() method should be better. I had some problems with a 
nested key
'items': {'type': 'list', 'schema': {'type': 'dict', 'schema': '{another dict}'}
Merge branch 'develop' of github.com:alanderex/eve into alanderex-develop
Occasional KeyError building _media helper. #271.
 alanderex
Merge branch 'alanderex-develop' into develop
Alexander Hendorf
Don't try to delete a field that doesn't exist.
Merge pull request #273 from taylor-brown/delete_nonexistant_fix

Don't try to delete a field that doesn't exist
Don't try to delete a media field that does not exist.
Taylor Brown
Add support for versioned documents
Add support for ?version=diffs
Clean up existing versioning functionality
Python trove classifiers.

Technically I think we'd only need Python 2 and 3. I'm leaving the
parent for clarity (users). Also, as suggested by George Hickman, I'm
adding the versions we are actively testing.
fixing typo in features docs

 - resolves https://github.com/nicolaiarocci/eve/issues/276
Return a 400 response on pymongo DuplicateKeyError
Fix minor typo in an error message
Merge pull request #281 from ento/fix-schema-validation-error-message

Fix minor typo in an error message
Marica Odagaki
Merge branch 'typofix' of github.com:heckj/eve into heckj-typofix

Conflicts:
	AUTHORS