Add support for STG,ZEA,ARC projections in GSFitsWCS, since they are a trivial addition as it turns out.
(#364)
Speed up wcs unit tests by omitting some tests during nosetests runs
(#364)
Remove a test that doesn't seem to be necessary and occasionally triggers when we use SBInterpolatedImage for interpolating fields rather than as a real SBProfile.
(#364)
Skip a few more slow tests during regular nosetests runs
(#364)