Core: Log messages after sending them to the app

The queueToLog() method was consuming the fields of some of the messages and the app was receiving incorrectly parsed messages.

This closes #1050
Merge pull request #1056 from arthurbenemann/issue1050

Core: Log messages after sending them to the app
Core: add extra follow modes back
Core: Removed Wake-board follow-mode
Core: change the way the default follow mode is instantiated
Android: Update the radius label on the follow-fragment when the follow mode is changed
Merge pull request #1057 from arthurbenemann/follow

Core: add extra follow modes back
Version: Releasing version 2.7.4
adding spinner wheel widget components.
MissionDetailFragment crash bug fix.
fixed compilation errors.
removed redundant linearlayout container.
cleaned file formatting.
settled on a style for the mission item number picker.
replaced the seekbar with the number picker.
cleaned up MissionWaypointFragment's layout and implementation.
cleaned layout resource for the MissionLandFragment.
updated formatting for the MissionLandFragment's layout resource.
updated MissionSplineWaypointFragment with the spinnerwheel widget.
updated MissionTakeoffFragment and MissionRegionOfInterestFragment with the spinnerwheel widget.
updated MissionLoiterTFragment with the spinnerwheel widget.
more german.