Made X, Y, and Z components in Vector protected.

Author: sk89q

src/main/java/org/bukkit/Vector.java

@@ -8,9 +8,9 @@
 public class Vector implements Cloneable {
     private static final long serialVersionUID = -2657651106777219169L;
 
-    private double x;
-    private double y;
-    private double z;
+    protected double x;
+    protected double y;
+    protected double z;
 
     public Vector(int x, int y, int z) {
         this.x = x;