added nltk_data folder and environment variable
added user feedback while text is being analyzed
added breaking sentences on new line characters
optimized text analysis code using list comprehensions and other python specific techniques
replaced {1,} with + in regular expressions
added stopword ratio and word, bigram and trigram frequency count
improved word, bigram and trigram frequency counts and displays
slightly modified word, bigram and trigram frequency display
fixed bug with some stopword stems not being in stopword corpus
added .DS_Store to .gitignore
added syllable and character counts and readability metrics
added character count metric
added timestamp column to database
added part of speech tagging and metrics
added correct handling of empty texts
added numpy package to requirements.txt
changed percent metrics display to one decimal place
minor code prettying
added autosizing textarea to fit text
minor html/css optimization for mobile view