Ensure that the configuration import is run before the database updates,
so that any new fields are created that are needed within the update
steps such as `field_type` on the talk node type.
Re-order the deployment steps, ensuring that the Drupal cache is rebuilt
before trying to run the custom Drush command to ensure that it is
found.
References #55.
Now that the Drupal settings role is on Ansible Galaxy, it can be added as a requirement and installed from there rather than having a local copy in the codebase.
Fixes#15