1. fix a race condition whereby a proc's output could trigger an event prior to the other outputs being setup, thus c ausing the IOF to declare the proc "terminated" too early. This was really rare, but could happen.
2. add a new "timestamp-output" option that timestamp's each line of output
3. add a new "output-filename" option that redirects each proc's output to a separate rank-named file.
4. add a new "xterm" option that redirects the output of the specified ranks to a separate xterm window.
This commit was SVN r20392.