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'

add the new logic about not having output of theano fct being aliased to the inputs to the DebugMode to remove false buildbot error.

doc the then env call back on_change_input have an optional reason keyword and accept it on more case to remove useless error.