This is needed for GpuAdvancedIncSubetensor1

Do not wrap in as_tensor_variable unless needed

Do not test div on denominator too close to 0.

The numeric estimation of the gradient was sometimes quite off.

Remove new bugged version of GpuSum commited in a pep8 commits.

Crash fix gpu reshape

Blas

Remove AddSSData Optimization

Fix elusive output-corruption bug in Scan.

The problem was that when copying a part of an array onto an overlapping
part of the same array, sometimes elements were overwritten before being
copied, leading to silent data corruption.

Import 'any' for python 2.4

Fixed crash when cuda is not available

This crash was introduced recently by ccb01355

Alloc

Also, don't print {} is there is no param to print. There is many scalar op like switch, LE, GT, ... that don't have a specified name.

Checks for preallocated output memory, take 2