SimpleConsumer.seek with whence == 1

[gataky]

When trying to seek with whence equal to 1 we get an exception

----> 1 consumer.seek(1, 1)

/usr/local/lib/python2.7/dist-packages/kafka/consumer.pyc in seek(self, offset, whence)
     79         if whence == 1: # relative to current position
     80             for partition, _offset in self.offsets.items():
---> 81                 self.offset[partition] = _offset + offset
     82         elif whence in (0, 2): # relative to beginning or end
     83             # divide the request offset by number of partitions, distribute the remained evenly

AttributeError: 'SimpleConsumer' object has no attribute 'offset'

It looks like self.offset should be self.offsets

[mumrah]

@JeffMGreg thanks for the bug report!