Changed android default theme to AppCompat.Light.DarkActionBar.
Removed inverted text color from exit dialog.
Merge pull request #1925 from mfleisz/andr_theme_fix

Changed android default theme to AppCompat.Light.DarkActionBar.
Added german translation.
Modified translation, better wording in context.
Fix conflicting define

WTSVirtualEventHandle and WTSVirtualChannelReady are already defined in wtsapi.h
and with different values.
Merge pull request #1927 from akallabeth/android-de-translation

German translation for aFreeRDP
Merge pull request #1928 from hardening/wts_fix

Fix conflicting define