First working version
-Added progress bar
-Convert all text to unicode (display accents, compare words, ignore words containing some character...)
-Ignore mail lines starting with ">", they are probably cited text, so it is repeated
-Added option parser
-Added the option to show only words with count higher or equal than specified value
-Added the option to strip words to its root word using NLTK library
Merge branch 'master' of https://github.com/esalgado/getMailTopKeywords