Fixes #289 - now construction `device_t`'s using `device::detail_::wrap()`. Also - no longer using the silly `wrapping_construction` tag - which we didn't need anyway.
Fixes #289 - now construction `device_t`'s using `device::detail_::wrap()`. Also - no longer using the silly `wrapping_construction` tag - which we didn't need anyway.

eyalroz/cuda-api-wrappers