- Added the data baud rate as a parameter to add_channel in vxl.Vxl a…

…nd can.CAN.

- Removed the baud rate parameter from can.Channel and can.ReceiveThread.add_channel since they aren't needed.

Merge branch 'tmp' into develop

Former-commit-id: 317d8192ae6b13a858b72c4a5ac1b0091d9b7ddd