ensure vrrp only created for services in attributes service hash
only create vrrp for defined services

closes #3
Merge pull request #5 from mancdaz/rework-vrrp

Merged automatically by jenkins after successful build test
convert to array of roles
Merge branch 'master' of github.com:rcbops-cookbooks/openstack-ha
convert role string into roles array, and iterate to build realserver list