Add automated listener for query whitelist

- "collection_query_whitelist" parameter in resource controller
  definition; can be either string or array.
- Tested!
- Also, discovered that you cannot set an array of identifiers for the
  controller, only a string; modified factory and readme accordingly.
Merge branch 'feature/factory-collection-query-whitelist' into develop

Allow whitelist of query parameters to inject in collection links.