a whole lot of refactor...
fix ukidss defaults
major refactor removing class_or_instance complete?
(Simbad still has "property class or instance" which is probably not
needed)
fixed more broken tests.  They all pass for py2.6, but nothing works at
all for py2.7 because something is really broken in my personal anaconda
builds
more bugfixes.  Still completely impossible for me to run local tests
now the only failure I'm aware of is due to incorrect astropy version
reporting (on my machine?)
last ugly doctest skip
more hacks, this time for incorrect signs in hms/dms
Merge pull request #240 from keflavich/just_class_refactor

Refactor: remove class_or_instance