added counts for pos and neg tweets
Adding a method in the streamer class to prune the hashtag_map
added pie chart
merge conflict
Merging differing comments of stream.statuses.sample line
Moving the stop words to a seperate file.  The file StopWords.txt holds them with one word/phrase per line.
Change the twitter streaming process to a daemon so that is will automatically exit when the main process ends.
fix some bugs
Merge branch 'master' into redis

Conflicts:
	tweets.py
add to readme