Predcalc test suit reorganization into packages
Support for intersective PP modification - Pelican Issue #12
Fix for WHO_A taking NP arguments - Pelican Issue #15
Merge branch 'PREDCALC_IMP'

* PREDCALC_IMP:
  Fix for WHO_A taking NP arguments - Pelican Issue #15
  Support for intersective PP modification - Pelican Issue #12
  Predcalc test suit reorganization into packages