GaussianVisLayer handles arbitrary axes order
skeleton for GaussianVisLayer unit tests
Merge remote-tracking branch 'upstream/master'

Retrieving recent pylearn2 additions before finalizing dbm unit tests
Unit tests added for GaussianVisLayer
Added test for arbitrary axes ordering for convolutional GaussianVisLayer
added set_biases method to GaussianVisLayer and removed unnecessary comments
added set_biases method to GaussianVisLayer and removed unnecessary comments
Merge remote-tracking branch 'upstream/master'

this merge is necessary,
added set_biases method to GaussianVisLayer and removed unnecessary comments
Merge pull request #681 from thompsonj/master

Axes ordering handling and unit tests for GaussianVisLayer in models.dbm.layer