Added the ConstraintWriter
Fluctuating charge ewald samples
Fixes to deal with deprecation of MPI C++ bindings. We've reverted back to the C calls.
MERGE OpenMD development 1783:1878 into trunk
MERGE OpenMD development branch 1465:1781 into trunk
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