This version is a dev build, based on #133, that adds support for modules to the plugin. This means that many big features/systems, such as missions or upgrades for example, will be considered as "modules" which can be toggled on/off. This also adds support for external modules to be added. For example, the one-block addon will be turned into a module instead.

I do not recommend using this version on a productive server.
Feel free to test it out and report issues on the issues tracker, or suggest features that should be moved into external modules on the issues tracker as well.