Bug Fix: Yaw To Rate Description

Change from m/s to °/s
Merge pull request #367 from azrin1972/BugFIx-YawTo-Rate

Bug Fix: Yaw To Rate Description
Removing english strings
Merge pull request #368 from arthurbenemann/PolishTranslation

Polish translation
PL Translation: after tests changes 1
PL Translation: after tests changes 1
Hardcoded String Fix: Air Speed, Ground Speed
Merge branch 'master' of github.com:arthurbenemann/droidplanner

Conflicts:
	DroidPlanner/res/values-pl/strings.xml
	DroidPlanner/res/values/strings.xml