Add functionality to recalculate slots when receiving MOVED response from node.

Add test to check for ASK responses (implementation missing)

src/main/java/redis/clients/jedis/exceptions/JedisMovedDataException.java

@@ -1,17 +1,37 @@
 package redis.clients.jedis.exceptions;
 
+import redis.clients.jedis.HostAndPort;
+
+
 public class JedisMovedDataException extends JedisDataException {
     private static final long serialVersionUID = 3878126572474819403L;
+    
+    private HostAndPort targetNode;
+    private int slot;
 
-    public JedisMovedDataException(String message) {
-        super(message);
+    public JedisMovedDataException(String message, HostAndPort targetNode, int slot) {
+    	super(message);
+    	this.targetNode = targetNode;
+    	this.slot = slot;
     }
 
-    public JedisMovedDataException(Throwable cause) {
+    public JedisMovedDataException(Throwable cause, HostAndPort targetNode, int slot) {
         super(cause);
+        this.targetNode = targetNode;
+    	this.slot = slot;
     }
 
-    public JedisMovedDataException(String message, Throwable cause) {
+    public JedisMovedDataException(String message, Throwable cause, HostAndPort targetNode, int slot) {
         super(message, cause);
+        this.targetNode = targetNode;
+    	this.slot = slot;
     }
+
+	public HostAndPort getTargetNode() {
+		return targetNode;
+	}
+
+	public int getSlot() {
+		return slot;
+	}
 }