Add "kick fan" feature - briefly run fan at full speed on start.
Be consistent in setting of the fan PWM.
Use gcc "-fwhole-program" optimization.
Use linker "--relax" option.
usb-ohci: Fix logical condition in start_ohci function
virtio-blk: Fix indentation for vring_get_buf call
Remove remaining ACPI tooling bits
docs: Add mkdocs build tools for building the seabios.org website