PEP8 and unused import cleanup
Make SkyCoord.frame be coord frame and frame_name be name
More PEP8 cleanup in tests
Change _coord to _sky_coord_frame; reduce use of private attr
Change name_resolve to return SkyCoord object
Simplify match routines using SkyCoord/BaseFrame polymorphism
Merge pull request #29 from taldcroft/coordinates-ape5-frame

Make SkyCoord.frame be the internal frame object