Theano/Theano — pull request #346 by abergeron (2012-01-15 20:46:46+00:00)
Title: Sparse grad

This makes grad() work with SparseVariables and also makes it easier to work with future new types.

For now, theano.tensor imports grad and company from theano.gradient for backwards compatibility, but we might want to retire that in the future.

I ran the whole testsuite (in non-debug mode) to make sure nothing is broken by the change.