Added several models related to the GHOP workflow. These models will form the base of the GHOP infrastructure together with the already commited task model. Reviewed by: Lennard de Rijk

#!/bin/sh
NOSE_WITH_DOCTEST=t
export NOSE_WITH_DOCTEST
NOSE_DOCTEST_EXTENSION=txt
export NOSE_DOCTEST_EXTENSION
#NOSE_DETAILED_ERRORS=t
#export NOSE_DETAILED_ERRORS
nosetests $*