Fix map duplication when adding maps using /dmap mapadd
Fix map duplication when adding maps using /dmap mapadd
webbukkit/DynmapCore,webbukkit/DynmapCore,mikeprimm/DynmapCore,instantdelay/DynmapCore,KovuTheHusky/DynmapCore,KovuTheHusky/DynmapCore,KovuTheHusky/DynmapCore,mikeprimm/DynmapCore,mikeprimm/DynmapCore,webbukkit/DynmapCore,instantdelay/DynmapCore,mikeprimm/DynmapCore,instantdelay/DynmapCore,instantdelay/DynmapCore,webbukkit/DynmapCore,KovuTheHusky/DynmapCore