The micro-addon LinkPortal requested by @Darkhand81 is now available. More information here

Commit 7f85c44

- Added new commands: bmv infos, which displays all the options and
values of a world.
- Minor fix to help command
- The bmv list command now only displays the worlds managed by the plugin (specifically the worlds listed in the worlds.yml file).
- It is no longer possible to create a world if another world with the same name already exists.
- It's now possible to retrieve a message from a custom config file, allowing custom config files to add their own messages.

Commit 009d375

Many commits were removed due to the bugs and compilation errors they
caused. Contributions and pull requests will no longer be accepted during the BETA phase.

The MessageType and PlaceHolder systems have been removed. A new system has been set up that allow micro-addons to add new messages and also that reduces the plugin size.