0.2.1
 - maintenance release to test automated deploy to PyPI
0.2.0
 - drop support for Python 3.5
 - feat: integer grid_size allowed for square-shaped simulation
 - ref: introduce RadiusExceedsImageSizeError in contour detection
 - code cleanup
0.1.5
 - BREAKING CHANGE: `models.available` is now a list, use
   `models.model_dict` instead.
0.1.4
 - BREAKING CHANGE: replace space " " by dash "-" in model names
 - feat: added methods to handle third party binaries (#3)
 - feat: implemented `ret_qpi` for edge detection in `analyze`
 - fix: example "cell_edge.py" was broken 
0.1.3
 - feat: added 2D phase fitting algorithm (method='image')
 - feat: added Mie average, Rytov, and Rytov-SC models
0.1.2
 - feat: added Mie model (based on BHFIELD) (#1)
 - fix: updated default keyword arguments for sphere models
0.1.1
 - feat: added projection model
 - feat: minor additions to API
0.1.0
 - initial release
