Fixed a bug that allowed players to use any warp, regardless of permission, by using the GUI. Now only the warps they have permission to use will show in the GUI.
Added a BUNCH of configurable messages, as requested by @JacobNordvall . You will need to delete your old config file in order to use this update. If you changed the sign format from the default, you can copy/paste that into the new config.
Added a permission for /warps: warp.list