Added step to pre-process bounds on properties based on constraints

Removed WorldTree.pickValue()
    - We rely on Range.generateRandom()

WorldTree.getBounds() now returns a clone of the randomspec range
Added method to HierarchicalSplit class to modify constraints
containing conditions with operators [ < | > ] into [ <= | >= ]
Added methods to RangeSet to provide easy use
Working on RangeSet integration
Merge branch 'working' into gurupras@buffalo.edu

Conflicts:
	src/development/com/collection/range/RangeSet.java
	src/development/hierarchical_split/HierarchicalSplit.java
	src/internal/tree/IWorldTree.java
	src/internal/tree/WorldTree.java