small changes in RunUnitTests.py
Merge branch 'Annex60' of https://github.com/open-ideas/IDEAS into Annex60

Conflicts:
	IDEAS/RunUnitTests.py
Merge branch 'Annex60' of https://github.com/open-ideas/IDEAS into Annex60
add filter to the input of pump to avoid singularities/non-linearities for discrete inputs such as pulses