CUDA fixes. The --request-scalar/vector options does not apply to CUDA (yet).
Less ambiguous usage text for --raw-always-valid
bench.c: Include stdlib.h for setenv
OpenCL: Print AMD-specific "board name" along with device name.
Merge remote-tracking branch 'origin/unstable-jumbo' into bleeding-jumbo

* origin/unstable-jumbo:
  OpenCL: Print AMD-specific "board name" along with device name.
  bench.c: Include stdlib.h for setenv
  Less ambiguous usage text for --raw-always-valid
  CUDA fixes. The --request-scalar/vector options does not apply to CUDA (yet).