Prepared State for sending over MPI.
Separated the sequential solver from main.cpp and added a stub for the parallel solver.
Take the input file from the command line, if available.
Implemented work transfers over MPI.
Somehow functional parallel implementation.
Properly named the input file.
Some cleanups.
Removed obsolete files: Point.h, multi.cpp.
Replaced direct printing of State with string conversion.
Updated README.