Increase fd limits as much as possible at startup
Bugfix: opencl: Correct usage of formatted prints
Bugfix: opencl/adl: Fix format string
Merge commit 'c4105a6' into bfgminer-3.0.x

Conflicts:
	miner.c
Merge commit '0ade1c4' into bfgminer-3.0.x
Merge commit '60de6c8' into bfgminer-3.0.x