Player login tracking

- Added the ability to track logins.  It will read old logs to pull old
login information.  This will allow the ability to remove grids of
players that are inactive.  Instead of using beacons or other strange
rules, we can just use inactivity.
- Added /admin player list active
- Added /admin player list inactive
- Added /admin scan inactive
- Added /admin delete inactive
- Added /admin scan entityid
- Added some error catching on chat commands
- Removed old commrelay code.
- Removed an old handler
- Removed Transport messages