ValueError: Filter must not be larger than the input: Filter: (8, 8) Input: (3, 160)

Hi,

I'm having this issue when running train steering model:

```
(snakes) guy_pavlov84@instance-1:~/research$ sudo ./train_steering_model.py --port 5557 --val_port 5556
Using TensorFlow backend.
Traceback (most recent call last):
File "./train_steering_model.py", line 62, in
model = get_model()
File "./train_steering_model.py", line 31, in get_model
model.add(Convolution2D(16, 8, 8, subsample=(4, 4), border_mode="same"))
File "/usr/local/lib/python2.7/dist-packages/keras/models.py", line 308, in add
output_tensor = layer(self.outputs[0])
File "/usr/local/lib/python2.7/dist-packages/keras/engine/topology.py", line 514, in __call__
self.add_inbound_node(inbound_layers, node_indices, tensor_indices)
File "/usr/local/lib/python2.7/dist-packages/keras/engine/topology.py", line 572, in add_inbound_node
Node.create_node(self, inbound_layers, node_indices, tensor_indices)
File "/usr/local/lib/python2.7/dist-packages/keras/engine/topology.py", line 149, in create_node
output_tensors = to_list(outbound_layer.call(input_tensors[0], mask=input_masks[0]))
File "/usr/local/lib/python2.7/dist-packages/keras/layers/convolutional.py", line 466, in call
filter_shape=self.W_shape)
File "/usr/local/lib/python2.7/dist-packages/keras/backend/tensorflow_backend.py", line 1579, in conv2d
x = tf.nn.conv2d(x, kernel, strides, padding=padding)
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/ops/gen_nn_ops.py", line 394, in conv2d
data_format=data_format, name=name)
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/ops/op_def_library.py", line 704, in apply_op
op_def=op_def)
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/framework/ops.py", line 2262, in create_op
set_shapes_for_outputs(ret)
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/framework/ops.py", line 1702, in set_shapes_for_outputs
shapes = shape_func(op)
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/ops/common_shapes.py", line 246, in conv2d_shape
padding)
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/ops/common_shapes.py", line 184, in get2d_conv_output_size
(row_stride, col_stride), padding_type)
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/ops/common_shapes.py", line 149, in get_conv_output_size
"Filter: %r Input: %r" % (filter_size, input_size))
ValueError: Filter must not be larger than the input: Filter: (8, 8) Input: (3, 160)
```

Any idea what that might be?
This is the setup:

```
(snakes) guy_pavlov84@instance-1:~/research$ pip freeze
funcsigs==1.0.2
h5py==2.6.0
Keras==1.1.0
mock==2.0.0
numpy==1.11.2
pbr==1.10.0
PyYAML==3.12
pyzmq==15.4.0
scipy==0.18.1
six==1.10.0
tensorflow==0.5.0
Theano==0.8.2
zmq==0.0.0

```