[vino] (6 commits) Non-fast-forward update to branch wip/oholy/covescan-fixes

[David King <davidk src gnome org>]

The branch 'wip/oholy/covescan-fixes' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  6cf893c... Fix various defects reported by covscan

Commits added to the branch:

  44e765a... Don't install the D-Bus service file when Telepathy is disa (*)
  79fd784... Merge branch 'wip/rishi/telepathy-dbus' into 'master' (*)
  e49456a... Prevent monitoring all interfaces after change of other pro (*)
  56ac246... Properly remove watches when changing server props (*)
  15eb3c5... Return empty string instead of NULL to prevent criticals (*)
  af30833... Fix various defects reported by covscan

(*) This commit already existed in another branch; no separate mail sent