Various bug fixes...

		* ComputePhi.m: Here.
		* ConstructP.m: Here.
		* ConstructPhi.m: Here.
		* Iterate.m: Here.
		* Run.m: Here.
Added a computation of the energy.

	  * ComputeEnergy.m: New.
	  * ComputePhi.m: Print it at every iteration.
	  * ConstructP.m: Here.