Starting to add features.

* Got the FragmentManager pushing a Fragment onto the top of the MainActivity `container`
* Fixed a small bug on the way where I wasn't close()ing the inputStream in the ListFragment class.
* Got a really basic maps view going, when you click on a list item
* Currently display magnitude and a timestamp, clicking on it reveals more
- Currently no concise or clear information is displayed, the intention
  was to add a long click which displays a detailed view of the
  information that we get back and deserialize from the RESTful API,
  but im at the end of my time for this for now.