Added Google Geocoder

Added the Google Geocoder API to the pom.xml to allow for searchable
addresses. This commit also includes a sample run to test and experiment
with.
Integrated Geocoder into TwitterPlotter

Added a simple search by location to the top. At the moment this will
take the user to the first location returned by the Geocoder. A future
commit will have a GUI that will prompt the user to select a location.
Enable hyperlinks in Tweets.

The table view of the tweet will now have the ability to click on
hyperlinks that appear in tweets. This will open up the System's default
browser and will open the URL.