added som ecommented out debug code
Fixed Diffusion and reaction diffusion solvers so that they work properly with variable diffusion coefficients. Previews implementations while conserving total amount of substance had directional bias. This was only present in the simulations where users used variable diffusion coefficients. There was also a bug in the GPU solvers when lattice size was not a multiple of the shared memory (16x16) . This was also fixed in this iteration. The problem here was with boundary conditions.
Fixed CelltypeMonitor plugin to handle properly resize events. The celltypoe and cell id arrays were not resized and this cause very hard to debug random crashes when resizing lattice while running simulation with diffusion solver. Fixed destructor of the Field3DImpl - it has to use delete [] not just delete. Those are old bugs which I think date back to ND times...
cleanup...