start_remote_irssi: Start screen if not existing
quvi 0.9: Add zdfmediathek script

Ported from the 0.4 version. Now using luaexpat.
quvi 0.9: Add radiode script
quvi 0.9: Add script from xvidstage.com

Have to use own http client code, to be able to do POST requests.
Using libsoup with lua gobject introspection (so lgi is required).