little changes for Syntax Highlighting
fix bug in NextNeighbor for OffLattice2D
NextNeighbor -->> NextNeighbor3D
NextNeighborPop -->> NextNeighborPop3D
nextNeighborPop -->> nextNeighborPop3D
revoxelize -->> revoxelize2D for OffLattice2D
revoxelize -->> revoxelize3D for OffLattice3D
new file voxelizer.h cause common code for 2/3D
new guoAdvDiffOffLatticeModel2D for OffLattice2D.
nothing changged.
Merge branch 'develop'