changed guesses in test_fit_quasar (still too slow though....)
added downsample method for spectrum
baseline bugfix - get_model is used elsewhere, and therefore must remain
aware of its fitted state
baseline fixes complete, test_fit_quasar pretty much works now
update to 0.1.13
setup tests now uses an (as-yet nonexistent) new repository
removed tests!
Merge branch 'master' into astropy-dependent
added astropy model inheritor class