AbstractedPolicy (not complete)
Part of previous commit
Added merging and union merge to policy block policies.
Merge branch 'master' of https://github.com/MAPLE-Robot-Subgoaling/BURLAP

Conflicts:
	OOMDP2.0/src/burlap/behavior/PolicyBlock/PolicyBlockPolicy.java
	OOMDP2.0/src/domain/taxiworld/TaxiWorldDomain.java
Merge branch 'master' of https://github.com/MAPLE-Robot-Subgoaling/BURLAP
Added naive merging and union merge to policy block policy.
Merge branch 'master' into cleanup

Conflicts:
	OOMDP2.0/src/burlap/behavior/PolicyBlock/PolicyBlockPolicy.java