Update version 0.8.2 -> 0.8.3
Update version 0.8.2 -> 0.8.3

New Features
------------
* Faster `BQM.add_interaction`
* `HigherOrderComposite`
* `reverse` kwarg for `SampleSet.data`
* `BQM` alias for `BinaryQuadraticModel`
* `SampleSet.__str__` for nicer printing of samplesets

Fixes
-----
* Fix empty `SampleSet`
* Fix import warning for collections package in python 3.7
* Remove unnecessary type check in `BQM.scale`
dwavesystems/dimod,dwavesystems/dimod