Initial shot at coordinate matching function
Add matching method
Added 2D separation to matching return value
Initial round of tests and associated fixes
Default to storing kdtree
More matching tests and associated fixes
docstring fixes and making API public
added matching info to coordinate docs
Added changelog entries for array coordinates and matching
fix for missing scipy check
Changed matching to have 3d and sky versions
correct tests for 3d and sky matching and related fixes
Update docs for 3d/sky changes
added see also to matching methods
force 2d separation to be Angle

that's what it will be one the __getitem__ thing is working, so we
should be compatible now
zap trailing whitespace
adjusted wording in CHANGES.rst to have more weasel words to satisfy @astrofrog :)
fix docstring as indicated by @astrofrog
Fix typo pointed out by @astrofrog
Fix for use of basestring

basestring is incompatible with py 3.2 - use six.string_type instead