Added ProposalDuplicates model and logic.
This will be used for storing the answer on duplicate calculations.
Patch by: Lennard de Rijk
Reviewed by: to-be-reviewed
#!/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 $*