unicode strings not supported

[vegarottesen]

While pytemperaturecontrol appears to find and communicate with the device, the latest version of Python uses unicode strings, which appears to mess up the communications. Running the example script returns

TypeError: unicode strings are not supported, please encode to bytes: 'version'

From testing here it seems adding a b to line 60 in julabo.py so it reads:
self.serial.write(b'version')
rectifies that problem.
The same modification appears to work with temperature, status etc.