Fixing unit bug in aperture photometry
Reverting doc changes
Merge pull request #140 from bsipocz/aper_adding_wcs

Fixing unit bug in aperture photometry
Fix typo
Addind missing Aperture classes documentation
Merge pull request #60 from bsipocz/aper_adding_docs

Aperture photometry Aperture classes docs update
Testing the concept of having a separate aperture class for SkyCircularAperture
Fixes
Updated tests
Partially fix skycoord test
Fixed some doctests
Added missing import
Fix remaining failures in building docs
Move skycoord_to_pixel to its own file
Added docstring to classes
Correctly treat radii in angle units
Use r in arcseconds in documentation
Minor cleanup in SkyCircularAperture
Tidy up parametrization
Address comments by @larrybradley, and removed option to pass sky coordinates without SkyCoord