German translation and minor fixes in base language
Merge branch 'master' into i18n_german

Conflicts:
	DroidPlanner/res/values/strings.xml
Updates according to master
Minor fixes for en+de strings
Moved hard-coded strings to resources
Merge branch 'master' into i18n_german
newHUD properly renamed to HUD
App preferences localized
Missing localization of ROI waypoint
Localization for Survey Polygon WP
Shortened the German translations (Layout problem)
Simple Language selector ("English instead of system language")
Merge pull request #1 from zumbrunnen/language_selector

Language selector
Merge pull request #650 from zumbrunnen/i18n_german

I18n preparations and German translation