(making a searchReply message ~100 bytes, down from ~30KB, and the lookup message ~64 bytes, down from ~10KB)
* when we get the netDb searchReply or lookup message referencing someone we don't know,
we fire off a lookup for them
* reduced some excessive padding
* dropped the DbSearchReplyMessageHandler, since it shouldn't be used (all search replies
should be handled by a MessageSelector built by the original search message)
* removed some oddball constructors from the SendMessageDirectJob and SendTunnelMessageJob (always must specify a timeout)
* refactored SendTunnelMessageJob main handler method into smaller logical methods
52b1c0a926