PM-774 introduced a notion of scope for data reuse module.
three scopes are supported
full    -  full data reuse as is implemented in 4.4
none 	-  no data reuse i.e same as --force option to the planner
partial - in this case, only certain jobs ( those that have pegasus
profile key enable_for_data_reuse set to true )are checked for
presence of output files in the replica catalog
PM-774 wrong enclosing bracket for boolean expression.
PM-774 Added a junit test for the partial data reuse mode.
the properties class now have a removeProperty method.