Merge pull request #50 from pulp/rbarlow-release-notes

Added the beginnings of our 2.1 release notes.
Automatic commit of package [pulp-puppet] release [2.1.0-0].
Docs: Updated version to 2.1
Merge commit 'cf1cc8d5f1f10e08d35a612c95bed6e425e330ba'
Merge branch 'pulp-2.1'