Added getOpenPredicatesAboveLevel()
Added string
fixed 'List<T> getObjectsWithKeyGreaterThan(Integer threshold)'
Added capability for getting a property
Added wrappers for:
1)Action
2)Effect
3)Parameter
4)Predicate
Added capability for getting a property
Fixed open predicates bug
Don't remeber what I have done besides that I'm no longer doing a deep clone
added Boolean isPositive to PredicateWrapper