Add season dependency
Use a test-status.cson configurate file

The built in Atom configuration API is pretty naive and doesn't really suit the
style of the configuration we need for test-status, so we now have a
test-status.cson file in the Atom configuration directory that we can use to
configure the file to command mappings.
Remove support shit
Remove gotchas
cba maintaining screenshots
Nuke README, rewriting it
Fill out README
Merge pull request #36 from tombell/external-config-file

Use External Configuration File