Fix for missing EK species initialization in case EK_BOUNDARIES is switched on but no boundaries are present.
Small fix to the users guide.
Merge pull request #163 from rempferg/ek_fix

EK species initialization didn't happen when EK_BOUNDARIES was on but no boundaries set
Moved cudaStreamCreate from lbgpu_cuda.cu to cuda_init_cuda.cu and made sure old stream is destroyed upon device switch.
Merge branch 'cuda_stream_cleanup' of git://github.com/rempferg/espresso
Fixed Lattice class.
Fixed bug in pdb-parser
Merge pull request #167 from hmenke/master

Fixed bug in pdb-parser