In Image2Neibs(images2neibs) op added the neib_step parameter and updated the gpu op to raise an error if it is not the default as it don't implement the new option.

warn that axis=None behavior will change and the default for axis will change for fct min,max,argmin,argmax,max_and_argmax.

print more info in case of an error. Bump version number of TensorType(mostly everything will be recompiled)

and removed trailing spaces and such

of [] to None which caused the bug. I fixed scan to be able to deal with
Nones as inputs

comment of James'