Ensure the Kickr and BT40 devices can co-exist by
ignoring subtypes.
Also introduced a deviceFound signal so we can get a
device pairing page for BT40 (non-Kickr) devices.
Fixed up the Kickr code to resend the load if the
user is generating more than 50% over the load or
is only generating 50% of the load.
This is in case the last message was not processed
for some reason (connection being established, or
noise).
