Added a JUnit test for JedisSentinelPool.

This test will set up and get a master from a Redis master slave pair being
watched by 2 Sentinels. It pings the master, segfaults it, asks the pool for
another connection and makes sure it can ping it.

This commit also restores the pom.xml file's scm information back to
xetorthio and adds the default Sentinel port to the Procotol.

src/test/java/redis/clients/jedis/tests/JedisSentinelPoolTest.java

@@ -0,0 +1,64 @@
+package redis.clients.jedis.tests;
+
+import java.util.HashSet;
+import java.util.Set;
+
+import org.junit.Before;
+import org.junit.Test;
+
+import redis.clients.jedis.DebugParams;
+import redis.clients.jedis.Jedis;
+import redis.clients.jedis.JedisSentinelPool;
+import redis.clients.jedis.tests.HostAndPortUtil.HostAndPort;
+
+public class JedisSentinelPoolTest extends JedisTestBase {
+	
+	protected static HostAndPort master = HostAndPortUtil.getRedisServers().get(2);
+	protected static HostAndPort slave1 = HostAndPortUtil.getRedisServers().get(3);	
+	protected static HostAndPort sentinel1 = HostAndPortUtil.getSentinelServers().get(1);
+	protected static HostAndPort sentinel2 = HostAndPortUtil.getSentinelServers().get(2);
+
+	protected static Jedis masterJedis;
+	protected static Jedis slaveJedis1;	
+	protected static Jedis sentinelJedis1;
+	
+	protected Set<String> sentinels = new HashSet<String>();
+	
+	@Before
+    public void setUp() throws Exception {    
+						
+		// set up master and slaves
+		masterJedis = new Jedis(master.host, master.port);
+		masterJedis.slaveofNoOne();
+		
+		slaveJedis1 = new Jedis(slave1.host, slave1.port);
+		slaveJedis1.slaveof(master.host, master.port);
+		
+		sentinelJedis1 = new Jedis(sentinel1.host, sentinel1.port);
+		sentinels.add(sentinel1.toString());
+		sentinels.add(sentinel2.toString());	
+		
+		// FIXME: The following allows the master/slave relationship to
+		// be established. We can do this more elegantly.		
+		Thread.sleep(10000);					   
+    }
+        
+    @Test
+    public void segfaultMaster() throws InterruptedException {
+    	
+    	JedisSentinelPool pool = new JedisSentinelPool("mymaster", sentinels);
+    	
+    	Jedis jedis = pool.getResource();
+    	assertEquals("PONG", jedis.ping());
+    	
+    	try { masterJedis.debug(DebugParams.SEGFAULT()); } catch (Exception e) {}
+    	
+    	// wait for the sentinel to promote a master
+    	// FIXME: we can query the sentinel and sleep
+    	// right until the master is promoted
+    	Thread.sleep(35000);
+    	
+    	jedis = pool.getResource();
+    	assertEquals("PONG", jedis.ping());
+    }
+}