Issues with set_pullup() #14

Hi

I'm trying to use set_pullup to set leg 0 to high, using set_pullup(0, 1) but keep getting an error that:

self.set_bit(CHANNEL_INDEX_PULLUPS, input_index, direction)
NameError: name 'direction' is not defined

Looking into the core.py file on here, the set_pullup takes three parameters, self, input_index, and state. This state parameter is never used but an undefined (probably) variable direction, is then used to call self.set_bit. Should this be state instead?

Cheers
Dave