Adding comments to GenHam.cpp
more comments in GenHam.cpp
more of the same
Added a GenHam file with the heiseberg JQ model - won't compile
	modified:   GenHam.cpp
	modified:   GenHam.h
	modified:   GenHam_Heis.cpp
commenting GenHam/GenHam_Heis and slowly adapting GenHam_Heis to work with the current NLCcommenting GenHam/GenHam_Heis and slowly adapting GenHam_Heis to work with the current NLCcommenting GenHam/GenHam_Heis and slowly adapting GenHam_Heis to work with the current NLC
Got rid of any reference to plaquettes in GenHam_Heis.cpp.
Also changed the Bond variable so it uses a vector of pair (as in the TFIM)
instead of some object that has a vertical and horizontal bond listed for
each site.
trying to get everything to compile with GenHam_Heis.cpp.  Still have one error left!
It compliles now.  Had to add magnetization and field variables
to the GENHAM object.  They're only used in the TFIM.  Might
want to get rid of them later.
Got rid of some commented out things in GenHam_Heis (Though left the two commented out functions).
added TFIM and Heis makefiles
Commented out all reference to magnetization except for the one in the GENHAM constructor
trying to print out energy.  (Not working so well)
Commented out the EE measurement because it's using the wrong spin basis
got rid of the need for param.dat (which I was missing before!)
hardcoded valvec_ = 2 in simparam.h since this is the only way to get the energy out
it prints out the energy now
Added graph file for a 4x4 square
	new file:   4x4square.dat
Cleaned up GenHam a bit
removing magnetization (since it's always 0 for heis groundstate)
modifying entropy calculation so it uses the proper basis.  I have only gotten to the point where I create the basis for region A and regionB.
They still need to be used in the construction of the RDM (not yet implemented)
entropy working (or at least running) for the first (horizontal) cuts !!
now I basically just need to modify the rest of the cuts in the same way.
The entropy.h is all working now.
Next step: output the 4x4 EEs
After that: get the NLC expansion working