PEP8, unused import.
Initial support for strided convolution, and one test.
BUG: filter_dims -> filters_dims
Fix FilterActs to respect assertion.
Bump c_code_cache_version
Test still fails but doesn't crash.
Fix test for real.
First pass at ImageActs.
Fix existing test.
Add test of ImageActs strided, failing currently.
Added shape specification to WeightActs.
Fix test_common.
Bump cache version.
Remove non-sensible test.
Added (failing) grad test.
fixed shape of cost_weights
Merge pull request #1 from goodfeli/strided_conv

fixed shape of cost_weights
partial cleanup of target image size error checking
rearranged code a bit to make it easier to run theano-only version
Merge pull request #2 from goodfeli/strided_conv

Strided conv