menu: rename menu.a65 to filesel.a65; add required library to README
Bootloader: change baud rate from 921600 to more common 115200
Bootloader: fix flash buffer alignment
Firmware: preparations for USB
Firmware: timeouts for FPGA configuration; LED flash codes for various FPGA related errors
pamper the compiler
Adjust OpenOCD configuration for more recent versions
Firmware: fix loading of partial-size BS dumps
Menu: rename menu labels to "filesel", minor tweaks/fixes