typos, punctuation, line width, etc.
Various typos and wording edits based on Rachels comments
(#364a)
Update C++ SBBox to use width, height to match python Box class
(#364a)
Remove python wrapping of PhotonArray, since we don't need that.
(#364a)
Remove previously deprecated Ellipse class
(#364a)
Remove previously deprecated AtmosphericPSF class
(#364a)
Merge branch '#364a' into #364

Conflicts:
	CHANGELOG.md
	examples/demo3.py
	galsim/wcs.py
	tests/test_transforms.py
Split off FitsWCS and related into fitswcs.py