Added TextToSpeech (when the media button is used)
Issue #6: When deleting a ride, set the current ride to the most recent ride, if any.
Only do text synthesis in English.  Use earcons for the other languages
Minor cosmetic changes.
Merge pull request #7 from caarmen/issue-6

Issue #6: When deleting a ride, set the current ride to the most recent ...
Renamed method and added caarmen in about screen.