chaco/data_view.py DataView class vertical orientation bug

The map_data() method from the DataView class in chaco/data_view.py does not correctly handle a vertical orientation.

Line 233 from the map_data method:
{{{
return array((self.index_mapper.map_data(x), self.value_mapper.map_data(y)))
}}}

I believe the fix is to replace the above line by:
{{{
if self.orientation == 'h':
return array((self.index_mapper.map_data(x), self.value_mapper.map_data(y)))
else:
return array((self.index_mapper.map_data(y), self.value_mapper.map_data(x)))
}}}