Created interfaces for status, traffic and prediction handlers
Integrated traffic visualization
Prelimimary tested on lollipop

to-do next:
- fix bug from server side, handle case of null values coming from json parser
- design and develop a label for traffic identification and basic information
- design and develop view for requesting the different lookaheads for a prediction
- customize app using material design and theme
- put visualization code for traffic and ownship in different class in order to separate it from the MainActivity class. i already did that for the predictionviewer