Adding line to deal with chaco2 -> chaco filename change in original.
Adding line to deal with chaco2 -> chaco filename change in original.

burnpanck/chaco,tommy-u/chaco,tommy-u/chaco,tommy-u/chaco,ContinuumIO/chaco,ContinuumIO/chaco,ContinuumIO/chaco,burnpanck/chaco,burnpanck/chaco,ContinuumIO/chaco