Core: Cuda Bug Fix in Hamiltonian_Heisenberg.cu - in the case of multiple basis atoms atomicAdd(..) was needed - CU_Write_FFT_Gradients is now also parallelized over the basis atoms - also fixed some weird formatting
Core: Cuda Bug Fix in Hamiltonian_Heisenberg.cu
- in the case of multiple basis atoms atomicAdd(..) was needed
- CU_Write_FFT_Gradients is now also parallelized over the basis atoms
- also fixed some weird formatting

spirit-code/spirit,spirit-code/spirit,spirit-code/spirit,spirit-code/spirit,spirit-code/spirit,spirit-code/spirit