nyanshak and yurishkuro Add support for Cassandra reconnect interval (#934)
* Make cassandra reconnect down hosts.

* Fix #767 by enabling gocql setting `ReconnectInterval` to reconnect to
down Cassandra hosts at a regular interval.

Signed-off-by: Brendan Shaklovitz <nyanshak@users.noreply.github.com>

* Add cassandra `ReconnectInterval` test.

Signed-off-by: Brendan Shaklovitz <nyanshak@users.noreply.github.com>
Latest commit 7919cd9 Jul 14, 2018