Safe Login

v 1.31
* Removed bug where server would get stuck in an update loop
* Added email functionality (not fully tested), this is disabled by default for that reason.

v 1.30
* Added password reset with '/sl reset <username>' to reset someone's data
  (They will be kicked with a message saying their password has been reset)
  Permission: sl.reset
* Commands now don't use '/sl' before them, now it's '/register' and '/login' because most people are used to this.
* Commands are now blocked when not logged in yet.

v 1.2.1
* Added reloader so the updater can work completely automatic
* Fixed updater ClassNotDefError

v 1.2
* Added (configurable) updater
* Premium check, plugin will do something with it next release

v 1.1
* Changed description
* Rewrote code to be ready for updates

v 1.0
* First release