Tests that FilterActs(WeightActs and ImagesActs) with all possible strides
Fix SVHN path handling.

if path ended with "/", it was not correctly working.
Fix GPU pooling code. This probably don't caused problem as normally the region is square.
reuse the same argument name in the doc as elsewhere.
Add the flops method to some ops.
fix doc.
Fix crash in the creation of pytables datasets
Update doc about Alex's K. implementation.
fix join of file name path.
Fix the handling of pytable filters.
Explicitly call theano.sandbox.cuda.var.float32_shared_constructor
Re-enable linesearch test now that Theano has been fixed
Merge pull request #411 from luoheng/master

Tests that FilterActs(WeightActs and ImagesActs) with all possible strid...
Merge pull request #454 from lamblin/reenable_linesearch_test

Re-enable linesearch test now that Theano has been fixed
Merge pull request #449 from nouiz/flops

[MRG]Flops and fixes.
Merge branch 'dev' of yosinski.com:pylearn2 into dev
Merge branch 'dev' of yosinski.com:pylearn2 into dev
Merge remote-tracking branch 'gh/dev' into dev