lua-factory: Add support for boolean media properties
lua-factory: Add support for boolean media properties

Such as "title-from-filename".

https://bugzilla.gnome.org/show_bug.cgi?id=740928

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