Added command /tpback <playername>
Added command /homeback <playername>
Added command /warpback <playername>
Added permission teleportgui.tp.tpback.admin
Added permission teleportgui.homes.back.admin
Added permission teleportgui.warps.back.admin
Added permission teleportgui.seeall, players with this permission can view the entire player list when friendlies only is enabled