Doc: ChangeLog: update for 2.0.2 release

Doc: update change log for 1.1.21 release

Doc: ChangeLog: update for 2.0.2-rc3 release

Doc: ChangeLog: update for 1.1.21-rc1 release

Doc: ChangeLog: update for 2.0.2-rc2 release

Merge pull request ClusterLabs#1757 from kgaillot/2.0

Release 2.0.2-rc1

Merge pull request ClusterLabs#1708 from kgaillot/release

Final 2.0.1 release

Merge pull request ClusterLabs#1709 from kgaillot/release11

Final 1.1.20 release

Merge pull request ClusterLabs#1703 from kgaillot/release11

Release 1.1.20-rc3

Merge pull request ClusterLabs#1700 from kgaillot/release

Release Pacemaker 2.0.1-rc5