Add a spot for our 2.1.1 release notes.
Mentioned some specific bugs in the release notes.
Fixes to the release notes.
Merge branch 'rbarlow-2.1.1-release-notes'

Conflicts:
	docs/sphinx/user-guide/release-notes/2.1.x.rst
Merge branch 'master' of ssh://github.com/pulp/pulp