Fix a few things related to the translations
Update the german translation
Du/Sie consistency
Update mmc_de.ts

Fixed grammar, improved wording.
It's not perfect but definitely better.
Add xnrand to the translation credits
Clean up/update translation code and made language selectable in the settings dialog
Hopefully fix Qt 5.1 compilation
More comments removal
More space between status items
Replace old launcher part with a shiny new one. No more garbage on the command line.
Merge branch 'feature_better_launch' into develop
Merge branch 'feature_mojang_status' into develop
Merge branch 'feature_localization' of https://github.com/02JanDal/MultiMC5 into develop

Conflicts:
	gui/dialogs/SettingsDialog.cpp
	gui/dialogs/SettingsDialog.ui
Fix window title problem on OSX.
Merge branch 'feature_better_launch' into develop