Interim commit of 1.2

This is a safety commit of v1.2. I'm still cleaning up the code and need
to add configuration support and new options to config.yaml. Still, you
can play with it if you want.
1.2 Commit

Version 1.2. Changelog:

* Added "resync" feature. If enabled in config.yml, players in boats
will be resynchronized to their location on the server at a specified
interval (default every 60 seconds).
* Added multiple configuration options to control the resync feature.