Merge pull request #5 from sdalton1/master

Additional graph functionality, BFS, RCM, Hilbert space-filling curves
Merge pull request #6 from sdalton1/master

Renamed graph operations and suppressed B40C printing
Merge pull request #7 from sdalton1/master

Updated graph interfaces
Merge pull request #8 from sdalton1/master

Fixed stdout problem on windows
Merge pull request #9 from sdalton1/master

Fixed error in connected components file and added grid generators.
Merge pull request #10 from sdalton1/master

Added maxflow solver
Merge pull request #11 from sdalton1/master

Added flow return variable
Merge pull request #12 from sdalton1/master

Fixed issue with host BFS path and add mincut procedure
Merge pull request #14 from sdalton1/master

Addressed two issues dealing with missing header includes and typedef accessibility of multilevel class.
Added copy constructor to smoothed_aggregation class
Fixed errors with SA copy constructor
Added copy constructor to polynomial smoother