Unify Extractor and Predicate hierarchies
Add filter tags to DispatchInt
Make better features
Add finally clause to stop thread in timed()
Move templates near DiscriminantTrainer (not needed at runtime)
Reintroduce WeightsSerializer to compact weight arrays
Remove unleashing of lexical features
Move BaseFeatures out of DiscriminantTrainer and create parameter
Rework analysis to share trainings
Fix bugs
Some changes on plotting and result caching
Merge all analysis