[gupnp-av] (7 commits) Non-fast-forward update to branch wip/lazy-namespaces

[Jens Georg <jensgeorg src gnome org>]

The branch 'wip/lazy-namespaces' 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:

  51d3842... Add utility functions for ns creation
  f2695e2... Add utility function to find namespaces
  801f1fb... Add utility function to lazy-create ns
  a6eb117... Lazy-create XML namespaces
  bb2f6e6... Revert "Add dlna namespace only when it's actually used"

Commits added to the branch:

  12590c7... Check for empty mandatory tags during UpdateObject (*)
  da457ec... Add utility functions for ns creation
  527fdbf... Add utility function to find namespaces
  e5f178b... Add utility function to lazy-create ns
  f8cd8c2... Lazy-create XML namespaces
  6ed170d... Revert "Add dlna namespace only when it's actually used"
  fa0cb42... Add testcase for bgo705564#c12

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