Starting to work on the follow-me UI
Android: Fixed wrong id on buttons.
Follow: By default use Leash for follow me, with 2Hz update rate
Merge pull request #810 from arthurbenemann/FollowImprovements

Follow improvements
MAVLink: Add eclipse project file to MAVLink library
Version: Releasing version 2.4.1
Core: JRE should not be in our build path