VOTE: release 3.1.1 RC6 as Apache Roller 3.1.1

[Dave]

I believe Roller 3.1.1 is ready for release. Please take a final look
(I hope) at the release and cast your vote. The release files are
here:

    http://people.apache.org/~snoopdave/apache-roller-3.1.1-rc6/

Thanks,
Dave