[MERGE][1.2?][Bug #137823] Don't blindly raise UnavailableFeature during test setup

[Vincent Ladeuil]

>>>>> "robert" == Robert Collins <robertc at robertcollins.net> writes:

    robert> Robert Collins has voted resubmit.
    robert> Status is now: Resubmit
    robert> Comment:
    robert> whats teh change from info to note about ?

Triggered by the following comment in trace.py:

# TODO: deprecate them, have one name for each.
info = note
log_error = _bzr_logger.error
error =     _bzr_logger.error

but of course I can revert it if that's a problem.

      Vincent