Changed weights from ints to doubles
Adopted test to use decimal weight values
Restored old method for int weights for backwards compatibility
Follow up changes on "pubsub numsub" output

* String, String to String, Long
* We're avoiding to break backward compatibility
** convert Long to String so that return type is same to old type
Implements #701, add close() to JedisCluster
Merge pull request #718 from HeartSaVioR/pubsub-numsub-output-changed

Follow up changes on "pubsub numsub" output (Fixes #714)
Merge branch 'present-close-to-jedis-cluster' of https://github.com/HeartSaVioR/jedis into HeartSaVioR-present-close-to-jedis-cluster
Merge branch 'HeartSaVioR-present-close-to-jedis-cluster'
Merge branch 'master' of https://github.com/markus-s24/jedis into markus-s24-master
Merge branch 'markust push origin master-s24-master'