added no-op for casting of CudaNdarrayVariable
modified MaxoutLocalC01B to unable CPU use
fixed ConvLocalC01B output_shape with kernel_stride
Merge remote-tracking branch 'upstream/master' into maxout
removed useless check on kernel_stride attribute
added back max_filter_norm with deprecation message
Merge remote-tracking branch 'upstream/master' into maxout
fixed bad attribute name
Merge remote-tracking branch 'upstream/master' into maxout
raise Memory error
Revert "raise Memory error"

This reverts commit 05a6fd8fb7b8522b17206d5337d8a862355a2fc4.
fixed pep8 issues
merge
fixed spacing
fixed docstring
revert preprocessing memory error message (wrong PR)
revert preprocessing memory error message (wrong PR)
fixed pep8 space issue
Fixed pep8 and typos
Merge remote-tracking branch 'upstream/master' into maxout