added system specific files to .gitignore
removed mac specific file
Added german translation for main ui and refactoring of package
structure
Translated preference pages to german
App now supports multiple languages when language files are added

Merge branch 'feature/multi-language' into develop
Merge branch 'release/multi-language'
Merge branch 'master' of https://github.com/tugelbend/friendica-for-android into tugelbend-master

Conflicts:
	mw-android-friendica-01/src/de/wikilab/android/friendica01/activity/HomeActivity.java