D19514: Add support for detecting avahi crash - cleanup invalid dbus objects in that case

[Harald Sitter]

sitter removed a reviewer: sitter.

REPOSITORY
  R272 KDNSSD

REVISION DETAIL
  https://phabricator.kde.org/D19514

To: jpalecek
Cc: bruns, kde-frameworks-devel, LeGast00n, sbergeron, michaelh, ngraham