Update Bukkit for Minecraft 1.6.1

By: Wesley Wolfe <weswolf@aol.com>

paper-api/src/main/java/org/bukkit/entity/Minecart.java

@@ -7,19 +7,35 @@ import org.bukkit.util.Vector;
  */
 public interface Minecart extends Vehicle {
 
+    /**
+     * This method exists for legacy reasons to provide backwards compatibility.
+     * It will not exist at runtime and should not be used under any
+     * circumstances.
+     */
+    @Deprecated
+    public void _INVALID_setDamage(int damage);
+
     /**
      * Sets a minecart's damage.
      *
      * @param damage over 40 to "kill" a minecart
      */
-    public void setDamage(int damage);
+    public void setDamage(double damage);
+
+    /**
+     * This method exists for legacy reasons to provide backwards compatibility.
+     * It will not exist at runtime and should not be used under any
+     * circumstances.
+     */
+    @Deprecated
+    public int _INVALID_getDamage();
 
     /**
      * Gets a minecart's damage.
      *
      * @return The damage
      */
-    public int getDamage();
+    public double getDamage();
 
     /**
      * Gets the maximum speed of a minecart. The speed is unrelated to the velocity.