fixed nosetest doc

Gpupool newbackend

Make sure the input of Neg.impl is not a numpy.bool_

small fix: doc, assert -> python error, printing, code clean up.

Add local_zero_div to specialize phase

Added required __future__ imports

add R_op for DisconnectedGrad

Otherwise, -False is True, and -True is False.

Add a test that this is enough to solve the binary_crossentropy(reshape) case.

Add optimizer merging two switches of same condition

[MRG] UnicodeDecodeError exceptions due to accents

Fix problem with python 3.5.

Add graph optimization 0/x -> 0

It would raise a SystemError wrapping the IndexError already raised.

Add flag: profiling.ignore_first_call and Update How To release.

Fix compilation on mac with CLT 7.3

Better error message

Fixes grammatical errors in theano.nnet.softmax doc

Decoding nvcc outputs in correct encoding.

Clarified graphviz dependency