Google Play Services library update.
Using new setIcon method to change the drone marker icon.
GUI: Starting to extract all dronemarker methods to a new class
GUI: fixing some problems with the DroneMarker class.
GUI: Removing some code duplication on the DroneMarker Class
Merge branch 'master' into newMaps
Added gps horizontal precision and activated vertical speed
Merge pull request #143 from realbuxtehuder/HUDParams

Added gps horizontal precision and activated vertical speed
Fix problem with RC Screen

Added onpause, onresume, and ondestroy methods to rc mode. There was an
error where when you switched to rc mode more than once after the app
was started it would not work. These methods resolved the problem.
Add Record Me mode.

Record me allows recording of follow me path. Saves into waypoints folder in the same format as saved points from planning mode. Added a setting to enable disable recordme.
Change the pref KeepScreenBright to on by default.
Change the default altitude to 50m.

That way it is a middle term for Copters and Planes. This should be modified on the furture.
Merge pull request #148 from arthurbenemann/prefChange

Preferences  changes

Change the pref KeepScreenBright to on by default.
Change the default altitude to 50m.
Moving duplicated code to a single method.
Merge pull request #149 from arthurbenemann/RCfix

Fix problem with RC Screen
Fix imports so we have no warnings
Extracting the Record Me mode from FollowMe.java to a new class.
Cleaning RecordMe.

Renaming functions, removing duplicated code for saving waypoints and removing unused variables.
Start using the Record Me function in the app.

Added a button to the planning screen to do the recordMe function.
And the code necessary to run it.
Fix some project paths that broke the build process.