travis-ci config, split the tests in 2 run.

NEWS.txt: none

Use Integer Division for Max Pooling Shape

New elemwise

NEWS.txt: NB added elemwise Trunc, Deg2Rad, Rad2Deg and Expm1 

Minor stuff (typos & PEP8)

Don't install SciPy deps for travisci

Mixed

fix crash introduced yesterday in MaxAndArgmax.

When we put a TensorVariable in a list, when we call as_tensor_variable on it,
this create a 2d tensor. We do not want that.

Minor stuff

Fix C code of Reshape when input is not c-contiguous

Ensure file descriptor is closed before trying to remove the temporary
file, as otherwise I suspect the removal might fail on some operating
systems. I think such a situation might happen only very rarely though
(maybe if disk is full?).

Mixed