Bugs in the FQ samples, fixed for Dump2XYZ to print out charges and electric fields
Chasing down bugs in the TIP4P_FQ model.
Added Fluctuating Charge Langevin propagator, and made it the default fixed some errors on the one-center slater coulomb integrals, and some parameters in PhysicalConstants.
fixes for fluctuating charges
Adding Joseph's FlucQ samples for testing