Made /warp give asking users to accept warps, can be overruled via flags
Major project-design overhaul, added java-docs to almost everything
This drops the old design where a class needed to keep the reference to
the plugin-class in favor of a static reference to it that can be
accessed from everywhere. Additionally methods have been moved and
classes have been renamed to reflect their usage properly.

This was hopefully puts an end to the refactoring started when I took
over the project.
Added /warp info command