updated script_config.pm with nowplaying-vlc related variables
added vlc-related functions to np.pl (adding the /npv and /nprv commands)
modified and fixed the xml output of irssi.xml
added additional documentation for the ul.pl updates and the np.pl updates
Merge branch 'master' of local-git:/mnt/data/git/irssi-scripts
Merge branch 'master' of my-github:/alandrees/irssi-scripts