Expand lowmem to not track stratum shares
Notify but still submit stale shares in bitmain
Make work stale error debug for bitmain
Fix implicit warning
Change default max queue back to 1 in line with speed of most current asic controllers
Set sshare to null to avoid undefined
Cosmetic fix
Enable building libusb without udev
Wake gws on get queued
Set driver max diff to large value if unset
Set S4 to device_diff not pool diff
Increase s4 array size
Implement support for mining.suggest_difficulty