Multiple changes to speed things up for COLING submission:
  - not considering wikipedia-derived thesauri
  - not using Min/Max composers
  - not using BernoulliNB/LogisticRegression
deleted conf dir
Added back the two conf files that are really needed and not autogenerated
Cosmetic changes
Added default C/gamma parameter value for RBF C-SVM. These were obtained through grid search on the training portion of R2
Using linear and RBF SVM instead of 3 different kinds of Naive Bayes