Update check for non-available gradient.

Better error message when missing memory on the GPU.

Don't sum scan profile in the sum of printed profiles.

This duplicate the info as the outer func is already in the summed profile.

fix pickle cache leak

make apt-get more verbose to try to remove the 10 minutes without output...

Repair other tests following the merge of the new backend.

Small stuff

Reported by Caglar directly to me.

Fix bug in scan merge optimization reported by Yao Li.

Support for a new type based on compyte in theano

Make tests try to run if they can.

Fix in local_dot22_to_dot22scalar

Fix the tutorial to make it work with python 32 and 64 bit.

Add tests and opt one more case.