refs #13 Add placeholder functions.
refs #13 change Expanding to Receding.
refs #13 change Expanding to Receding.
Merge branch 'master' into enhancement/13_matlab_to_cpp
refs #13 Refactor DecisionTree and StuntzHuntz.

DecisionTree is now a component of StuntzHuntz.
refs #13 add RecedingHrizon in stuntzhuntz.cpp
Merge branch 'enhancement/13_matlab_to_cpp' of github.com:osurdml/treemower into enhancement/13_matlab_to_cpp

Resolved:
	src/stuntzhuntz.cpp
refs #13 Make DecisionTree a superclass of StuntzHuntz.
refs #13 Separate lawnmower from receding horizon code.
refs #13 Refactor.
refs #13 Refactor.
Merge branch 'enhancement/13_matlab_to_cpp' of github.com:osurdml/treemower into enhancement/13_matlab_to_cpp

Resolve:
	src/stuntzhuntz.cpp
refs #13 conficts
Merge branch 'enhancement/13_matlab_to_cpp' of github.com:osurdml/treemower into enhancement/13_matlab_to_cpp

Resolve:
	src/stuntzhuntz.cpp
refs #13 Refactor LookAhead to decrement depth instead of increment.
Merge branch 'enhancement/13_matlab_to_cpp' of github.com:osurdml/treemower into enhancement/13_matlab_to_cpp
refs #13 Add Lawnmower as its own class.
Merge branch 'master' into enhancement/13_matlab_to_cpp

Resolve:
	Makefile
	include/costmap.hpp
refs #13 Add reasonably generalized undo capability to InfoMap.
refs #13 Fix pointer error.