Add subdir-objects to automake options.
Merge branch 'master' into quota
Avoid dynamically adding stack memory for nonce2 in the stratum send thread and check the pool's nonce2_len will not cause an overflow.
Merge branch 'master' into quota
Find the greatest common denominator in quotas and use the smallest number of consecutive work items per pool in quota load balance mode to smooth hashrate across pools with large quotas. Give excess quota to priority pool 0 instead of pool 0.