removed fX and replaced it with the actual code
relaxed the constraint of ais_nodata of having the AIS logZ exactly equal to the exact logZ such that we accept 1% erorr
Mostly PEP8 in conv2d
conv2d tests
make_random_conv2D test
Use floatX for conv2d tests and add test for different numbers of input/output channels in conv2d
GaussianVisLayer handles arbitrary axes order
formatting and correcting docstrings
docstring and remove one_hot from mnist
conv2d tests different error type for bad filters
skeleton for GaussianVisLayer unit tests
Merge remote-tracking branch 'upstream/master'

Retrieving recent pylearn2 additions before finalizing dbm unit tests
tutorial files orgnized in folders
path mess up fix
added README files
link to ipyhthon viewer updated
conv net test updated
added conv.yaml
convnet notebook updated
added cleaunp saved files