Update setup.py to reflect re-factored setup code for 0.2 release
If necessary, move configuration file to the right place on first import
Added open_files option to test() to reflect latest Astropy master.
Removed ``-e`` flag from astropy install to avoid issues with installation.
Merge pull request #23 from astrofrog/update-from-template-2

Update from package-template
Copied over latest changes from affiliated package template
Ensure that optional dependencies for Sphinx are installed
Merge pull request #25 from astrofrog/update-from-template-3

Copied over latest changes from affiliated package template