Added clCreateSubDevices implementation for AMD SDK DeviceFission
Changed DeviceFission test to expected pass
Added DeviceFission fixes to AMD SDK patches
Adding sub devices increases parent device's reference count
Merge branch 'master' of github.com:pocl/pocl
Parent device's information copied to sub devices.

Parent device's reference count incremented atomically uding macros POCL_RETAIN_OBJECT and POCL_RELEASE_OBJECT.
POCL_RETAIN_OBJECT used properly.
GNU style indentation
Merge branch 'master' of https://github.com/koskinel/pocl

Conflicts:
	lib/CL/pocl_cl.h
Added CREDITS to Lassi and updated CHANGES.