Added sort_order field to the database and included it in the respective stuff needed to persist it from object state to db and vice versa.
ReOrderTopComponent get's notified when there is a connection to the DB and initializes it's BeanTreeView accordingly.
In other words, connection notification works

Basic sorting now works, mostly, for the new module.
It doesn't work for the children of the root node if the root node is hidden.
Auto-initialize on DB-connect settled for now.
Look into StickyLookup and Central Lookup.