Bugfix: Turn spidevc into lowl-spi to fix building the knc driver without the bitfury driver
DevAPI: Remove long deprecated serial_detect function family
Silence warnings when built without various drivers
configure: libusb is implied by lowl-usb, so no need to list it as an option separately
Bugfix: Restore 2-minutes-past-last-work wait before terminating unused stratum connections
Merge commit '18b6c38' into bfgminer
RPC: Use struct timeval for mcast bind timer
Merge branch 'cg_merges_20130822a' into bfgminer
Bugfix: pool_active: Skip testing explicitly when we have a recent answer
Merge commit 'a39dc04' into bfgminer