* remove check for gather arg, use TESTINFO from tmcc hwinfo
  instead. Only call tmcc once. Let non-MFS boot collect data.
* tmcc hwinfo not return a TESTINFO line. Handle the LOGDIR, COLLECT
  and CHECK indicators
* Do to variable scoping make sure everything runs in the shell.
  Do not 'exit' from called programs. Source called programs instead
  of starting new shells.
* Nothing wrong with the which() function I put in since the
  MFS/busybox installation does not have one, but if we have a real
  which(1) program use it.
* output format changes and programming space changes
* remove check for gather arg, use TESTINFO from tmcc hwinfo
  instead. Only call tmcc once. Let non-MFS boot collect data.
* tmcc hwinfo not returning a TESTINFO line. Handle the LOGDIR, COLLECT
  and CHECK indicators
* Do to variable scoping make sure everything runs in the shell.
* Do not 'exit' from called programs. Source called programs instead of
  starting new shells.
* Nothing wrong with the which() function I put in since the MFS/busybox
  installation does not have one, but if we have a real which(1) program
  use it.
* call sub-programs by sourcing not by starting new shell.
* oops mfsmode is not set until initialize is run. also set -e -u to
  catch this type of thing.

Checknode tests once again run in standard images and can collect
data.

* All tests can now be "sourced" from gatherinv to insure everything
  runs in a single shell.
* All tests can also be called standalone.
* MFS mode and non-MFS mode honor the CHECK and COLLECT flags.
* Create, if necessary, a new project save directory.
* This will be needed once every-time checknodes is run in a new project.
  path is /proj/{pid}/nodecheck.
* If script can't run quit with a 'return 0' so the rest of the checks
  can continue.

Change filename gatherinv -> checknode

* Can't run in MFS mode if not in the emulab-ops pid