reset bad message count to zero after a successful API message; reset tick to zero upon new connection
updated logic to only drop connection after a series of malformed messages.
updated changelog
updated how to flash for stm32
moved around and updated how to flash doc for stm32 and sam7s
padded OBDII PID query to the full 8 bytes for maximum compatibiltiy with ECUs
Merge branch 'mk2_release'