Bugfix: bitforce_queue: Implement a minimum wait time of 10ms
bitforce: Include new total queued count in flush debugging
Bugfix: bitforce: Clear want_to_send_queue flag when flushing queue, since we can't send an empty queue
Bugfix: bitforce_queue: Don't try to send ready-to-queue work to device, when there is no ready-to-queue work
bitforce: Report queue send failures, and count as hw errors
Merge commit 'd65d47e' into bfgminer-3.0.x
Merge commit 'c86d00a' into bfgminer-3.0.x
Merge commit 'f1d8ab8' into bfgminer-3.0.x
Merge commit 'e7d815e' into bfgminer-3.0.x