Bugfix: DevAPI: hashes_done: Explicitly cast to uint64_t for big calculations (LLVM was allowing overflow)
Merge commit '9896585' into bfgminer-4.7.x
Makefile: Specify .cl files explicitly, and only include scrypt ones when configured with scrypt support
README.ASIC: Explain Zeusminer options
README.ASIC: Minor cleanups to Zeusminer section
Update bundled libblkmaker to 0.4.1