The template code that processes also_notify is of a kind with the checks and
processing of other optional smart-array values. Make its default an empty
string so that the clause may be properly omitted from a config that doesn't
use it.
Previous iterations and even a release were all broken. The module works again,
sorry for the interlude.
- Giving up on params and moving to module_data (WIP)
- Change the Package and Service references to the static 'bind' name
- Add a meager amount of test coverage
Make recursion_match_clients and recursion_match_destinations mirroring the
existing match_clients and match_destinations in order to distinguish recursion
access as a proper subset of view access.
