Merge pull request #8 from davidBelanger/master

Test: Added a comment
indentation fix
app.nlp.wordnet: allowing loading of an empty file to mock the dependency
CategoricalDomain: fixing possible data race found by thread sanitizer
fixing compile errors
Merge branch 'master' of https://github.com/factorie/factorie
MPLP: marginalizing over arbitrarily many varying neighbors
add snapshot repository to nlp resources
Merge pull request #10 from sameersingh/master

Add iesl snapshot repository
fix classifier evaluation (it was doing nothing before)
fix classify command line tool to use correct imports and implicits in trainer eval string
dec trees are now fully sparse, including feature subsampling for random forests
Merge branch 'master' of github.com:factorie/factorie
add CART classification tree (uses GIni coefficient)
Merge branch 'master' of https://github.com/factorie/factorie
app.nlp.pos.POS1: fixing dot product bug introduced with sparsified serialization
fixed two critical bugs. One was in the domains for serialization of the coref model not being done properly. The other was that parse-based mention finder wasn't returning mentions in a sorted order
Merge branch 'master' of github.com:factorie/factorie
Merge branch 'master' of https://github.com/factorie/factorie
changed sorting of mentions if mention finder to respect sections