Publish on ansible galaxy version of role including fix for Ansible 2.3

[lucafavatella]

See https://galaxy.ansible.com/basho-labs/riak-kv/
See #78

[christophermancini]

@lucafavatella thanks for letting me know, looks like the webhook is not working. I will try to get it fixed ASAP.

[lucafavatella]

@christophermancini No hurry for me (I use git clone anyway), but some people may use the role on galaxy and get stuck.