Update to newer MultiWii Version

[cmb87]

Hello alduxvm,
I noticed your pyMultiWii module is not working with MultiWii firmware > 2. Are you planing to update your module?
Thanks!

[alduxvm]

Hi, I haven't done any work for this library for a while... if I get some free time then I could potentially do it...

[Niko-La]

@alduxvm looks there is some changes to the way the betalight communicates. library might need some tweaking to get sendcmd to work . arm and disarm might need to be modified too.

imu and other sensor data is working fine.