Bumped version numbers
Updated What's New
Updated NEWS
Mention that the documentation is about firewall configuration.
Merge pull request #983 from ClusterHQ/release/flocker-0.3.2

Release Flocker-0.3.2

Author: @wallrj
Reviewers: @itamarst, @dwgebler, @robhaswell 

Fixes: https://clusterhq.atlassian.net/browse/FLOC-1014