EmotionAll MVP

Users can choose from a list of trends in our database and see a heat map of the world based on the sentiment of tweets for that particular trend. 
This is a really generically named global function.  It would be better if it was an Object initialization (i.e. `EMOTION.init()`), but you could also "namespace" your global variables and objects by creating a single global variable `var EMOTION = {};` and attaching your "global" functions to those, i.e. `EMOTION.eventHandler();`