German Translations

By Frogman
Latvian translations

Signed-off-by: Mirakels <mirakels@users.sourceforge.net>
Add cursor functionality to Virtual Keyboard
VirtualKeyboard: Ensure returned text is encoded in utf-8
Do not show all services for bouquets and alternative edit

Let the user decide where to get the services from and do not choose for
the option that might take the longest time
Optimize vkey_all.png with optpng

Sorry that I forgot this to do yesterday.
Merge branch 'master' of git://git.code.sf.net/p/openpli/enigma2