Merge pull request NixOS#383 from domenkozar/update-changelog

Release notes for 1.3.1

Add NixOS 15.09.505.7adab11 AMIs

Fix release date, today is the day...

Update 1.1.1 release date

Set higher memory for coordinator in hetzner backend test.

Update version. Add release notes for next minor version.

Fix the test

Python packages need to be propagated.

Distutils has no way to specify runtime dependencies, so we have to do it in the nixexpr.