Use getFromKeyFieldsOr404 in slots() and allocateSlots()
Handling of the exception is done by the view decorator.
Patch by: Sverre Rabbelier
#!/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 $*