Try cygwin fix

Fix scan names of variables.

Support more recent flake8 version

After looking at older documentation of flake8, I think all flake8 3.* version should work: http://flake8.pycqa.org/en/3.0.0/user/python-api.html. So removing the version check completly.

Fix gh-6566. Update the pictures in the convolution tutorial.

Better error msg

Fix non-cudnn reductions that were all subtly broken by 91bc16c3.

support allow_remove_{inf,nan}

Add a map of values_approx functions from cpu to gpu.

lazylinker_c: Make sure that the version number is flushed to disk

Corrected spelling mistake

Add a script to help test GPU power consumption.

Switched lambda to partial in EighGrad