If running in an msys shell, use the /home/embray environment variable set in that shell to find the user's home.  The surest way to determine this is if the MSYSTEM environment variable is set (it doesn't matter what it's set to).  Obviously this isn't foolproof but there are few better alternatives (one might be to try calling 'uname').
Add function to calculate inverse of cosmology function and tests
Fix typo in doc string

uncertaintys -> uncertainties
Add changelog entry
updates based on feedback
minor doc updates
add description of z_at_value along with some other minor clean-ups
Fix test failures introduced by doc changes
more changes to address travis build failures
further changes based on feedback from @eteq
fix a couple of typos
Add unicode_literal versions of test_read/write.py
Change test type() == str to isinstance(basestring)
Update io.ascii csv interface to coerce args to str() type
Fix for #1942.  Added pickling test class for coordinates as well
Upgrade to wcslib 4.20
Actually bump up version number.
Move astropy.convolution to using six
Remove debugging print statements
Update CHANGES.rst