Merge pull request #218 from goodfeli/master

LinearGaussian
FIX batchwise_shuffled_sequential returning wrong number of examples
Merge pull request #219 from memimo/iterator

FIX: batchwise_shuffled_sequential returning wrong number of examples
Make partialsum results an output of WeightActs.

This allows Theano to manage it and (optionally) disable garbage
collection of it between invocations.
Merge pull request #221 from goodfeli/master

Ising model
Merge pull request #220 from dwf/partial_sums_output

Make partialsum results an output of WeightActs.
Merge pull request #222 from goodfeli/master

ICML contest
Informing user for the cases when both irange and sparse_init are specified
Merge pull request #223 from SinaHonari/my_branch

Informing user for the cases when both irange and sparse_init are specif...
Merge pull request #224 from goodfeli/master

Multimodal contest
Don't track pycharm file and .DS_Store file
Merge remote-tracking branch 'upstream/master'
Adapt missing_target_cost to the new drop_out architecture
Merge pull request #226 from archambaultv/master

Adapt missing_target_cost to new dropout architecture
Merge pull request #227 from goodfeli/master

ICML contest examples
Merge pull request #228 from goodfeli/master

Iris dataset, shuffle and split preprocessor
Add a simple utility function for GCN.

This should be called by both the preprocessor and any other uses of
GCN.
Moved GCN to expr.
Fix old test and add min_divisor test.
Improve global_contrast_normalize.