Update NEWS.
usb_cleanup() without locking
Merge pull request #401 from kanoi/bflsc

usb_cleanup() without locking
Fix memory leak with share submission on GPU work structures as discovered by twobitcoins.
Merge branch 'master' of github.com:ckolivas/cgminer
Cope with the highest opencl platform not having usable devices.
Update NEWS.
Whitelist AMD APP SDK 2.8 for diablo kernel.
Bump version to 2.11.2