Release 1.1.0

Partial list of changes:

* Many fixes, large and small, regarding connection handling.
* An admin messenger and whisper system. PMs are handled with the syntax `@user:Message goes here`, admin messaging with `@@Message to the admins goes here`, and server announcements with `@@@Server announcement goes here`.
* Simplified syntax on /warp command. Removed coordinate warping for the time being due to syntactic issues and the current difficulties with translating arbitrary x/y's into a 3-tuple.
* Alphabetically-sorted configuration output.
* Improved output of /who and /planet commands.
* Changed default planet protection level to UserLevels.REGISTERED instead of ADMIN.

This release is backwards-compatible with the previous player DB format, though future ones may not be. There are some minor changes to the configuration options that will need to be accounted for. Please adapt your current configuration file into the format provided in config.json.example.