Add Score.isScoreSet()Z API.

Also fix generics on CraftScore.getScore()I.

By: md_5 <git@md-5.net>

Bukkit-Patches/0027-Add-Score.isScoreSet-Z-API.patch

@@ -0,0 +1,31 @@
+From 42fb4c3837a133f6bbfd221dbe690c5a59e3c561 Mon Sep 17 00:00:00 2001
+From: md_5 <git@md-5.net>
+Date: Thu, 17 Apr 2014 19:35:13 +1000
+Subject: [PATCH] Add Score.isScoreSet()Z API.
+
+
+diff --git a/src/main/java/org/bukkit/scoreboard/Score.java b/src/main/java/org/bukkit/scoreboard/Score.java
+index 4c10346..2410cbd 100644
+--- a/src/main/java/org/bukkit/scoreboard/Score.java
++++ b/src/main/java/org/bukkit/scoreboard/Score.java
+@@ -51,6 +51,17 @@ public interface Score {
+      */
+     void setScore(int score) throws IllegalStateException;
+ 
++    // Spigot start
++    /**
++     * Shows if this score has been set at any point in time.
++     * 
++     * @return if this score has been set before
++     * @throws IllegalStateException if the associated objective has been
++     *     unregistered
++     */
++    boolean isScoreSet() throws IllegalStateException;
++    // Spigot end
++
+     /**
+      * Gets the scoreboard for the associated objective.
+      *
+-- 
+1.8.3.2
+