This is mostly a housekeeping release.
Implemented dedicated migration scripts. You should be able to safely update from 3.0.6, 3.1.0 and 3.1.1 and everything will be on its place.
I highly encourage to update to this version because in 3.2 we are moving from SQLite to PostgreSQL (for better performance + scalability).
I beg you to report any migration issues so they can be ironed out before the big migration.