dimensions (resulted in 3x speedup)

Please be careful when committing ;)

committing ! :(

mods to tensor/basic: added dimshuffle member function; changed smallest and largest to use switch() for 2-arg applications; added an additional error-check to numeric_grad.max_err

dx, dy != 1, 1

Now we return the same value with the same stride in the python version as the c version.

It had been failing since r1764:64956dd6a9b9, due to a change in the string
representation of some Ops.

added fct c_no_compile_args that allow to remove some args from the compile cmd. This is usefull to remove some agression optimisation that break some Op.

float64 output)

It is now possible to overwrite the shared container's content by providing a
value as input. This is mostly to make the code simpler to write, understand,
and use, at the cost of a small risk of accidentally overwriting a container's
content.