Merge pull request #104 from Multiverse/fix/hk2-contract

Fix @contract annotation

Author: benwoo1110

src/main/java/org/mvplugins/multiverse/signportals/listeners/SignPortalsListener.java

@@ -1,7 +1,7 @@
 package org.mvplugins.multiverse.signportals.listeners;
 
 import org.bukkit.event.Listener;
-import org.mvplugins.multiverse.external.jvnet.hk2.annotations.Contract;
+import org.jvnet.hk2.annotations.Contract;
 
 @Contract
 public interface SignPortalsListener extends Listener {