Debugs in excess removed
removed some not useful commented lines
'most_frequent_positive_adjectives_in_positive_documents' and
'most_frequent_negative_adjectives_in_negative_documents' turned to
'most_frequent_polar_adjectives_in_polar_documents'
Added trim of adjectives based on upper limits for positive ngrams and
lower limits for negative ngrams
Added trim of adjectives based on upper limits for positive ngrams and
    lower limits for negative ngrams to SUM statistics
Added trim of adjectives based on upper limits for positive ngrams and
        lower limits for negative ngrams to HIGHEST SCORE statistics
Refatored other method's name and created a new one to create histograms: get_adjectives_polarities_distribuition
refactored 'positive_adjectives' to 'positive_ngrams' and
'negative_adjectives' 'negative_ngrams'
Inserted histograms methods for term counting generating graphics by
plotly service. Besides, was cretaed two fields for login and password
for plotly.
Inserted histograms methods for sum of polarities generating graphics by
    plotly service.
Inserted histograms methods for highest score of polarities generating graphics by
        plotly service.
'histogram_highest_count_positive_ngrams' refactored to create a hist
from only positive or negative docs, besides them all
created the 'create_histogram' to generalize the creation of histograms in plotly.
refatored 'get_dist_highest_count_positive_ngrams' method based upon this.
'histogram_highest_count_negative_ngrams' refactored to
'get_dist_highest_count_negative_ngrams'
refactored histogra methods for sum of polarities features
refactored highest score histograms methods
Created two methods to extract adjectives distribution