Merge pull request #54 from djiang3/master

Added a background for the GUI
Fixed bug in classifier
Made tweet_trender a callable function
graphanalysis can now select arbtitary dates to show as graphs; improved graph output with titles and angled x-axis ticklabels
Merge pull request #55 from lostorbit/master

updated output of graph analysis program
Merge pull request #56 from djiang3/master

- Bug fix to get tweets program
Get the correlation works for graphics and number
started adding graphing functionality
Merge remote-tracking branch 'upstream/master'
Minor layout edits
Merge remote-tracking branch 'upstream/master'

Conflicts:
	sentiment_analyzer.py
Added Di's correlation function manually; were having merge conflicts
Fixed more classifier bugs
Merge pull request #58 from lostorbit/master

merging di's changes
layout changes
Merge remote-tracking branch 'upstream/master'
more classifier bugs
New tweet_trender and zmqsrv update

NEEDS TESTING ON POPULATED DATABASE!!!
Now does daily tweet points over on dates in database
Merge remote-tracking branch 'upstream/master'
updated classifier and tested tweet_trender