retry thrift connection if it barfs

if the ES conn blips, the thrift blips, the thrift conn goes
down. Retry it once before giving up. This way, all the pool
workers will automagically reset themselves, instead of
having <poolcount> fails

* Also set the poolcount to '1' for ES (its behind a gen_server!)
retry thrift connection if it barfs

if the Cassandra conn blips, the thrift blips, the thrift conn
goes down. Retry it once before giving up. This way, all the pool
workers will automagically reset themselves, instead of
having <poolcount> fails
Merge pull request #47 from dieswaytoofast/develop

Retry the thrift conn for ES & Cassandra if they barf