without \newlines the input dialog gets really big

On contacts with multiple resources, not all information was displayed.

The progressbar was looping forever when someone sent us an invalid time result

If we dont specify the encoding, the system default is used which leads to encoding/decoding errors, depending on what the actual system default encoding is.

When hiding the Window the app is removed from the Ubuntu Launcher and it cannot be restored

Fixes automatic scrolling for the XMLConsole in GTK3