downsample has been moved to pool

[xhd2015]

relating to this Theano/Theano#4337
when I run 'python2.7 run_nnet.py TRAIN'
it gives this:
Traceback (most recent call last):
File "run_nnet.py", line 15, in
import nn_layers
File "/media/sf_D_DRIVE/installed/githubs/deep-qa/nn_layers.py", line 6, in
from theano.tensor.signal import downsample
ImportError: cannot import name downsample

then I rewrite 'from theano.tensor.signal import downsample' in nn_layers.py to 'from theano.tensor.signal import pool as downsample',
everything works.

[liudonglei]

Thanks.
I also face this problem, and I try to reinstall the 0.8.2 version of theano, but failed also.
but your method works.