Roller 6.1.1 RC #1 to fix MySQL 5.7 upgrade problem

[Dave]

I put together a release that fixes the upgrade problem with old MySQLs:

    https://dist.apache.org/repos/dist/dev/roller/roller-6.1/v6.1.1

I'm not going to call a release vote yet, because I think there might be
other fixes we want to get in.

Thanks,
Dave