Merge pull request redis#168 from kevinsawicki/jedis

---

This constructor type is available on the ```Jedis``` class and so I added it to ```JedisPool``` for consistency.

Conflicts:
	src/main/java/redis/clients/jedis/JedisPool.java

src/main/java/redis/clients/jedis/JedisPool.java

@@ -16,6 +16,10 @@ public JedisPool(String host, int port) {
         this(new Config(), host, port, Protocol.DEFAULT_TIMEOUT, null, Protocol.DEFAULT_DATABASE);
     }
 
+    public JedisPool(final String host) {
+        this(host, Protocol.DEFAULT_PORT);
+    }
+
     public JedisPool(final Config poolConfig, final String host, int port,
             int timeout, final String password) {
         this(poolConfig, host, port, timeout, password, Protocol.DEFAULT_DATABASE);