Initial port to Maven

Hi,

I've ported the project to Maven to be able to import and build it on various IDEs. Current issues:
- native libraries for serial ports are working (?) yet. Didn't test them.
- JavaFX is a PITA. Followed instructions from here: https://code.google.com/p/jfxtras/wiki/ContributorGettingStarted to make it work with Maven.