Fix for unschemed urls with using ip:port definition

src/main/java/org/bukkit/craftbukkit/util/CraftChatMessage.java

@@ -80,7 +80,7 @@ public final class CraftChatMessage {
                     currentChatComponent = null;
                     break;
                 case 3:
-                	if (URI.create(match).getScheme() == null) {
+                	if (match.indexOf("://") < 0) {
                 		match = "http://" + match;
                 	}
                     modifier.setChatClickEvent(new net.minecraft.event.ClickEvent(net.minecraft.event.ClickEvent.Action.OPEN_URL, match)); // Should be setChatClickable