updating molecularDynamics functionality with Graham's latest changes

...ications/solvers/molecularDynamics/gnemdFoam/Make/options

...olvers/molecularDynamics/mdEquilibrationFoam/Make/options

applications/utilities/preProcessing/molConfig/Make/files

applications/utilities/preProcessing/molConfig/Make/options

...ons/utilities/preProcessing/molConfig/correctVelocities.H

...tions/utilities/preProcessing/molConfig/createMolecules.C

...tions/utilities/preProcessing/molConfig/createPositions.H

...ions/utilities/preProcessing/molConfig/createVelocities.H

...ications/utilities/preProcessing/molConfig/genMolConfig.C

...utilities/preProcessing/molConfig/latticeStructures/BCC.H

...utilities/preProcessing/molConfig/latticeStructures/FCC.H

.../utilities/preProcessing/molConfig/latticeStructures/SC.H

applications/utilities/preProcessing/molConfig/molConfig.C

applications/utilities/preProcessing/molConfig/molConfig.H

applications/utilities/preProcessing/molConfig/molConfigI.H

applications/utilities/preProcessing/molConfig/origin.H

...tions/utilities/preProcessing/molConfig/readZoneSubDict.H

...cations/utilities/preProcessing/molConfig/startingPoint.H

...reProcessing/molConfig/velocityDistributions/maxwellian.H

...s/preProcessing/molConfig/velocityDistributions/uniform.H