Follow: Fix forgotten implementation of Location class.

During the refactor of FusedLocation both the heading and speed have not been passed from the fusedLocation to the location object.
Merge pull request #1065 from arthurbenemann/followFix

Follow: Fix forgotten implementation of Location class.
Version: Releasing version 2.7.5
Core: Warn about all high severity messages from the Drone
Merge pull request #1066 from arthurbenemann/warnings

Core: Warn about all high severity messages from the Drone
Version: Releasing version 2.7.6
Core: Keep the received firmware version in the drone object
Android: Show firmware version on setting screen
Merge pull request #1067 from DroidPlanner/firmwarVersion

Display firmware version on settings screen
Merge branch 'master' of https://github.com/DroidPlanner/droidplanner into fix_issue_1051