small fixes suggested by Matthijs
more scinet work, mostly
remove hard-coded module loading on PBS; fix help messages
add (SciNet) example PBS script fragments
small tweaks to work better with torque
Merge branch 'develop' of github.com:bcdarwin/pydpiper into develop

Conflicts:
	pydpiper/queueing.py
broken cortical thickness stuff
Merge branch 'develop' of github.com:Mouse-Imaging-Centre/pydpiper into develop

Conflicts:
	atoms_and_modules/LSQ6.py
scrape walltime remaining out of environment instead of guessing based on flag passed to server