lua-factory: port grl-guardianvideos.lua to the new lua system
lua-factory: port grl-guardianvideos.lua to the new lua system

https://bugzilla.gnome.org/show_bug.cgi?id=753141
Acked-by: Victor Toso <b1c1d8736f20db3fb6c1c66bb1455ed43909f0d8@victortoso.com>

jasuarez/grilo-plugins,jasuarez/grilo-plugins,MikePetullo/grilo-plugins,GNOME/grilo-plugins,MikePetullo/grilo-plugins,MikePetullo/grilo-plugins,grilofw/grilo-plugins,GNOME/grilo-plugins,grilofw/grilo-plugins