VNC client/server clipboard: Use Latin1 encoding
requested to merge hoffmannrobert/krdc:work/hoffmannrobert/use_latin1_encoding_for_client_server_clipboard into master
This patch adds an option to use Latin1 encoding. It fixes copy/paste between client and server of latin characters using 8 bits. Characters needing more than one byte cannot be copied due to a VNC protocol limitation.
The VNC (RFB) protocol does not support clipboard operations between client and server using UTF-8, only ISO-8859-1 (Latin1). So this option is enabled by default.
Test: Copy/paste some latin characters with accents, umlauts, etc. between client and server.