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to use the DB library access routines, which also changed in response
to what the tb scripts needed. Added some functions and mor constants.
Removed the -nologfile option from all the scripts (startexp and
endexp too), since there is no reason for these scripts to worry about
log files. Thats handled in the wrappers. Tested with the testsuite
and live in my own tree.

Lots of small changes for turning our 'require lib*' lines into 'use lib*' lines. Proper modules declare themselves as a package, and use Exporter to export the names of the subroutines that should be visible from the outside world. Many of ours didn't do that, it was just a file with a bunch of subs in it. So now I've fixed many of them to be proper, and removed the requires and 'push(@INC,...)' hacks and changed it to the proper 'use lib @prefix@/lib/;' and use lib*.

Fixed some warnings in assign_wrapper that were subsequently caught.

exitonwarn is a library that, when used in a script, causes it to exit 255
when warnings are sent.  It still shows all warnings, just does an ugly
perl hack to error on script termination.

with the testing stuff.

them on the first run to accurate predictions.

fixes we missed.

tbprerun - Fixed estimations to be slightly more accurate.  Hard to get
complete accuracy without duplicating much of assign_wrapper.  This'll
probably change in someway in the near future.

replaced by the "images" table. New os_info table is added. New web
pages to add and delete OSIDs to/from the os_info table, for use in
the NS file. tb-create-os is gone. handle_os no longer operates on the
tbcmds file, and no longer writes anything into the ir file. Moved the
setting up of os state (nodes table) from os_setup to handle_os, where
it should be. os_load and sched_reload now take a single argument, the
name of the imageid from the images table.

the batch daemon knows when configuraton failed cause there were not
enough nodes. The batch daemon uses this in an information manner
right now, but later we should kick out experiments that fail for any
reason other than lack of resources.

Include assign.log in email message when assign fails.

a safe place in /usr/testbeb/expinfo for archival purposes.

virtual node we were getting a double reserve of delay nodes.

script uses this option so ot can easily capture output.

test.ns is a new style example test_oldstyle.ns is the same configuration
oldstyle syntax.  Both should work fine and achieve identical results.

web output friendly. Less is more.