Make use of astropy affiliated package infrastructure
Don’t test Python 3.2
Enable coveralls
Merge pull request #42 from astrofrog/use-astropy-helpers

Make use of astropy affiliated package infrastructure
added tests for image comparison
Merge pull request #41 from anizami/new-image-tests

code for generating and comparing images
Make coord_type_from_ctype return a default coord_wrap
Add coord_type_from_ctype tests.
Merge pull request #19 from Cadair/coord_wrap

Make coord_type_from_ctype return a default coord_wrap