Still more polish
Still more polish

- Increment timer ID in one place. This cleans things up and allows
  the code to avoid incrementing it and preserve an existing expiry
  value in the case of a failure to allocate a timer kev structure.

- Add a second level of verbosity. Currently only a single trace
  message (for creating timer events) is at this level.

cmusser/radnsd,cmusser/rdnssd,cmusser/rdnssd