* StartServer is now a method on Server.
* What used to be Dialer.Dial is now Server.Dial.
* Server.Dial handles trying to start the server if the initial connection fails.
* Dialer now dials a network address.
* All types that took a Dialer now take a Server.
* Server now has tests!
All sync status reads now also check for failure status,
using the same logic as the normal Scanner (the only difference
being that for normal scanners, length is encoded as a hex
string, but for sync scanners it's in binary little-endian).
