Merge branch 'master' of https://github.com/xetorthio/jedis.git into jedis_cluster_fix_ask

Conflicts:
	src/test/java/redis/clients/jedis/tests/JedisClusterTest.java
the previous way verify whether new none completely joined cluster have a defect.
only verify node name have been renamed is not enough. maybe all slot don't be assign to node.
because all other node tell new node the slots that he served via gossip  need time