[gupnp] (8 commits) Non-fast-forward update to branch wip/phako/46

[Jens Georg <jensgeorg src gnome org>]

The branch 'wip/phako/46' 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:

  a986442... Make ServiceIntrospection introspectable

Commits added to the branch:

  8a34954... service-action: Protect against unsent message use (*)
  0f59d90... service-action: Do not leak message if never sent (*)
  35bba25... context: Small code cleanup (*)
  e7f9837... service-proxy: Do not keep action alive on error (*)
  982bf69... service-introspection: Make GI introspectable
  553f415... examples: Fix JavaScript example
  3197ab0... examples: Add get-volume.py
  1bc19e7... examples: Add get-volme C example

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