Removed blacklisting of world-containing URDFs from allURDFs.m.
Removed blacklisting of world-containing URDFs from allURDFs.m.

sheim/drake,sheim/drake,sheim/drake,billhoffman/drake,billhoffman/drake,billhoffman/drake,sheim/drake,billhoffman/drake,sheim/drake,billhoffman/drake,billhoffman/drake,billhoffman/drake,sheim/drake,billhoffman/drake,sheim/drake,sheim/drake