[gnome-software] (5 commits) ...Merge branch '554-keeps-rpm-ostreed-alive-forever' into 'master'

[Philip Withnall <pwithnall src gnome org>]

Summary of changes:

  40a2fcf... rpm-ostree: Transaction cancellable can be NULL (*)
  f47282c... rpm-ostree: Correct detection of a transaction name owner d (*)
  1e3cecd... rpm-ostree: Reference per-transaction objects and use them  (*)
  5a404a0... rpm-ostree: Disconnect from rpm-ostreed when inactive for s (*)
  0c94517... Merge branch '554-keeps-rpm-ostreed-alive-forever' into 'ma

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