Do not fail due to style warnings when using relaxed validation
Do not fail due to style warnings when using relaxed validation

Fixes https://github.com/hughsie/appstream-glib/issues/36

hughsie/appstream-glib,ximion/appstream-glib,mitya57/appstream-glib,ximion/appstream-glib,superm1/appstream-glib,superm1/appstream-glib,kalev/appstream-glib,ximion/appstream-glib,ikeydoherty/appstream-glib,hughsie/appstream-glib,ikeydoherty/appstream-glib,hughsie/appstream-glib,kalev/appstream-glib,mitya57/appstream-glib