• BREAKING CHANGE Endpoint.all() and .filter() no longer return lists, instead they return a ReturnSet object now. Iterating over this object calls a generator which steps through paginated results now as-needed.
• Endpoint.all() and .filter() now accept a limit kwarg that controls the page size of paginated results.
• Fixes issue pickling responses from Endpoint.all() and `.filter() (#331, thanks again @markkuleinio).
• Implemented integration tests against four previous major NetBox releases (thanks @raddessi).
• Ends python 2 support.