Expanded to ito_miner.rb
Updated some comments
Updated some comments
Deleted swap
Disabled word stemming

This is a temporary patch to prevent textmine.r from crashing. Trying
to stem non-english words caused a dimension mismatch in the corpus,
which cascaded into an error while trying to build the term document
matrix.
Decrement of the minimum word count in wordcloud() from 4 to 3.