added trans diff option to exp postprocess
fixed bug in creation of vectors for graph
draft of centroid exp - to be tested with full run
fix problem with runnning ipython within virtualenv
changes to run centroid exp on all eval data
filter out norwegian aux verbs
using asciitable package for printing exp results
tightened unit test of feature selection
changes to make centroid nb exps run
Merge branch 'centroid-exps'