Merge pull request #3778 from dkliban/beta16

Bumps version, adds release notes for beta 16

Merge pull request #3770 from dkliban/beta15notes

Adds release notes and version bump for beta 15

Merge pull request #3754 from dkliban/b14-version-bump

Bumps version for beta 14

Merge pull request #3709 from bmbouter/add-release-notes

Add release notes and bumps versions

Merge pull request #3702 from dkliban/beta-12

Release notes and release bump for beta 12

Merge pull request #3682 from daviddavis/new-release

Releasing new plugin and pulpcore versions

Merge pull request #3679 from dkliban/beta10

release notes and release number bump for beta 10

Merge pull request #3673 from dkliban/beta-9

docs for beta 9

Merge pull request #3650 from dkliban/beta8

Release notes and release bump for beta 8

Merge pull request #3625 from dkliban/beta-7

Bumps version for Beta 7 release notes