bifury: Unify SEND devprotodump logging code
Bugfix: bifury: Use a char array, rather than pointer to char array, for bifury_init_cmds
bifury: Abstract line parsing into bifury_readln function
bifury: Tolerate other data before version reply
bifury: Implement hashrate reporting using "job" messages
bifury: Free work when we know it's complete
README.ASIC: Document Bi*Fury firmware upgrade