ignore a wiki sub-directory
Change default port.

This really should be read from configuration
Add assembly sbt plugin.

For assembling a fat jar.
First stab at the climb service.

Slightly different in design from the user service.  Just to see which
works out better...
Simplified de-duplication.
Change the read-model actor to an EventsourceProcessor...

... backed by the same journal.  The benefit of this is that the
read-model actor (should) receieve the replayed events upon startup; and
it can take advantage of the snapshotting too (although it cannot itself
write to the journal -- the latter of which is currently unenforced).
A few more climb service tests
Small tidy ups
Change climb service to return new climb id when creating a climb.
Cosmetics
Move de-duplication logic into SingleWriter.

This maintains the integrity of the data.