Added a home for the 2.1.1 and 2.2.0 release notes.
Removed the spot for the 2.1.1 release notes.
Fix the index to point to the new release notes location.
Reverse the order of versions in the release notes.
Merge branch 'rbarlow-release-notes'

Conflicts:
	docs/user-guide/release-notes/2.1.x.rst