* Add py.test based simple tests.
Merge branch 'segmentation' of https://github.com/syllog1sm/redshift into segmentation
* Switch to bllip clusters.
* Fix pesky bug with reindexing on small data sets.
* Ignore the test model.
* Add some extra features to arc-hybrid.
* Flesh out parser test slightly.
* Clobber Turian-computed browns.txt with the Koo et al computed ones, which seem better.
* Rename clusters