
* propagate process rlimits, priority to exported jobs -- done 2/16/92
* implement cpu time limit on exported jobs -- done 2/16/92
* allow netgroups in clients list
* do pwd user authentication on target host -- done 2/18/92
* cctrl -killall -- done 2/17/92
* external descriptor file for path normalization 

* implement eviction by signal -- done 3/15/92
* handle remote STOP signals -- done 3/17/92
* allow job restarts on certain signals (SIGXPCU)
* fix signal delivery to stopped jobs -- done 3/17/92

* ignore short idle time if nobody logged in on console
	-- problematic because console isn't always used when machine is in
	   use, e.g., if running XDM.
* need convenience function to convert export error code to message strings

