Bugfix: dynclock: Never try to clock below 1x
Bugfix: Target FD_SETSIZE for fd soft limit (to avoid buffer overflows), rather than raising it as high as possible
Merge commit 'd198bdf' into bfgminer-3.0.x
Bugfix: Stratum: Avoid FD_SETting INVSOCK

Conflicts:
	miner.c
Merge commit 'f3f0b39' into bfgminer-3.0.x