compatibility issue with ansible 2.4.0.0

Summary

fatal: [rocketchat]: FAILED! => {"failed": true, "reason": "Invalid options for include_role: ervice_name,docker_compose_service_file"}

Steps to reproduce

Use role with ansible 2.4.0.0

Expected behavior

Role runs without issues

Actual behavior

Role fails: `

Relevant logs and/or screenshots

fatal: [rocketchat]: FAILED! => {"failed": true, "reason": "Invalid options for include_role: service_name,docker_compose_service_file"}

Possible fixes

move include_role variables to vars