Stub for the Greek Translation.
Update strings.xml

Greece lang v.1
Merge pull request #116 from Wizarddd/patch-1

Greek Translation
Stub for the Latvian Translation
LV translation added
Fixing Latvian Translation
Fixing Greek Translation
Merge pull request #119 from arthurbenemann/Translation_Latvian

Translation latvian
Preparing for release v0.8.4
improve consistency across different screen sizes
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
Second try for better HUD rendering

-replaced all fixed and density scaled size and position values by
percentual scaled values.
-some minor layout changes
Merge pull request #123 from realbuxtehuder/master

HUD layout impovement
Merge branch 'master' into newMaps
Preparing for release v0.9.0
Quickfix so the project compiles with the latest version of ADT