Remove use of init:restart/0

We've had issues with this so avoid it when we can.
remove some logging
initialize #db{} so that validation funs are loaded on first write

BugzID 10675
Name unused variable
only display counter portion of cluster update_seq in Futon

We should provide access to the full sequence in Futon somehow, as
it's useful for things like changes since "now".
Use twig for logging