[Theano/Theano] f3bb5b: Create 1.0.5 release (#6760)

[Thomas Wiecki]

Branch: refs/heads/master
Home: https://github.com/Theano/Theano
Commit: f3bb5b755ec5e92fb60b5364d83a10878fa9a211
https://github.com/Theano/Theano/commit/f3bb5b755ec5e92fb60b5364d83a10878fa9a211
Author: Thomas Wiecki <thomas...@gmail.com>
Date: 2020-07-27 (Mon, 27 Jul 2020)

Changed paths:
M HISTORY.txt
M NEWS.txt
M bin/theano_nose.py
M doc/LICENSE.txt
M doc/conf.py
M doc/install_generic.inc
M doc/library/config.txt
M setup.py
M theano/configdefaults.py
M theano/version.py

Log Message:
-----------
Create 1.0.5 release (#6760)

* Change maintainers to PyMC devs.

* Modifications for the 1.0.5 release

* Only set environ variable if not already set.

* Add Thomas Wiecki to contributors.