Fixing errors in stuff

GUI - show graphs just displays all stock data for company
            (no date range)
            (no tweet sentiments)

tweet_trender - fixed disconnect between this and zmq_srv. Was storing 'company' as the company name while zmq was accessing 'company' under the impression it was the stock symbol
              ex:  old trender push - ['company'] = google
                     old zmq pull - ['company'] = rcvd['symbol']

                     new trender push - ['company'] = GOOG