* Added function to make tacl experiments easier
* Set _features array by nr_feat, to avoid memory problems
* Bug fix to S0hc
* Tweak to rough copy features: don't look at S0's rightward subtree when determining exact match
* Added extra label features
* Removed extraneous add_clusters option
Merge branch 'feature/experiments' of https://github.com/syllog1sm/redshift into feature/experiments