remove dead hub idempotent locks
update current hub last ping

- keeps logs from looking wonky
remove unused ConsoleRunOptions

- it was misleading when i looked at it
we only need one thread at a time marking dead hubs.  but...

pinging will let as many threads as necessary perform the keep alive ping, just in case one sql connection is having issues and another one can get through
Merge pull request #58 from daptiv/optimize-life-support

Optimize life support
Merge branch 'idemponent' of github.com:daptiv/Daptiv.Bus into idemponent
Merge branch 'master' into idemponent