Added Prior Polarities to features.
Created a features module to hold class of model features.
Subjectivity clues commented due to be instable yet and some minor enhancements on lexicons module
Added adverbs as adjective's modifiers in features module, in sum and score methods.
And refactores transformation module to receive the prior_polarity_score param.
Added the Subjectivity Clues class and methods. But it is VERY FUCKING SLOW
Created the classe about ngram's distribution on models and removed the PerceptronTagger due to a bug in new Textblob version.