Adding new API functions: register_id_with_basename, unregister_id_with_basename, find_ids_from_basename; adding test
Rename find_ids_from_basename() to find_all_ids_from_basename(), adding another find_ids_from_basename(), adding documentation, updating test
Adding find_id_from_basename().
Rephrasing the documentation notes for the new API functions
Merge pull request #1124 from STEllAR-GROUP/collective_registered_names

Adding new API functions: register_id_with_basename, unregister_id_with_basename, find_ids_from_basename; adding test