Complete Shuttle Tracker Implementation

- Remove option to change weather location from Troy, NY
- Fix weather location to refer to correct city of Troy in the US
- Implement the Shuttle Tracker finished
- Add shuttle images from shuttles.rpi.edu official site
- Add license: Apache 2.0
- Update Google Play Services library
- Update Android Support v4 library
- Improve program/code security
- Remove unnecessary files
- Bump the version number