Merge pull request #179 from shilad/spatial

Spatial
Added simple MilneWitten
Merge branch 'master' of https://github.com/shilad/wikibrain
Fix bug in word2vec building.
Trying to track down memory issue with sqllinkloader...
Fixed typo in SRBuilder option handling.
Tweaks and one bugfix for CSCW paper.
Working version of pruning code.
Improvements to mavenization. Working around a series of threading bugs. Ugh.
Finally tracked down bug in sr unit tests: WordSim 353 has money, cash TWICE. GRRR!
Fix bug introduced in CategorySR, small changes to support CSCW
-o in SRBuilder accepts an arg!
Merge branch 'master' into spatial