Sets timeout correctly for JedisCluster. Fixes #602.

Removes unused JedisCluster timeout parameter and now it's passed
all the way up to the creation of the JedisPool.

Conflicts:
	src/main/java/redis/clients/jedis/JedisCluster.java
	src/main/java/redis/clients/jedis/JedisPoolAbstract.java
	src/test/java/redis/clients/jedis/tests/JedisSentinelPoolTest.java
	src/test/java/redis/clients/jedis/tests/JedisTest.java

Author: marcosnils