[gupnp-av] Created tag gupnp-av-0.12.6

[Jens Georg <jensgeorg src gnome org>]

The signed tag 'gupnp-av-0.12.6' was created.

Tagger: Jens Georg <mail jensge org>
Date: Tue Jun 10 15:11:14 2014 +0200

    Release 0.12.6

Changes since the last tag 'gupnp-av-0.12.5':

Jens Georg (11):
      Post-release version bump
      Remove dead code
      Remove unused assignment
      Add null checks
      Add utility functions for ns creation
      Add utility function to find namespaces
      Add utility function to lazy-create ns
      Lazy-create XML namespaces
      Revert "Add dlna namespace only when it's actually used"
      Add testcase for bgo705564#c12
      Prepare 0.12.6