Restore the ability to put the RTI on a remote machine

[edwardalee]

Somewhere along the way, the ability to specify a remote machine for the RTI, e.g.:

federated reactor at wessel.eecs.berkeley.edu { ... }

got broken. The generated script was incorrect and would fail to start the RTI. Now it works, although there is a rather ad hoc five second wait for the RTI to start up.

[Soroosh129]

LGTM!

The ad-hoc wait time is an unfortunate side-effect of the way federates actually look for the RTI (by rotating through thousands of network ports).