[gupnp] Created tag gupnp-0.20.4

[Jens Georg <jensgeorg src gnome org>]

The signed tag 'gupnp-0.20.4' was created.

Tagger: Jens Georg <mail jensge org>
Date: Tue Jul 30 09:54:14 2013 +0200

    Release 0.20.4

Changes since the last tag 'gupnp-0.20.3':

Bastien Nocera (1):
      context: Use ASCII-only user-agent

Jens Georg (6):
      Post-release version bump
      Fix gtk-doc warnings
      Minor doc improvements
      Force HTTP version 1.1 on SOAP requests
      Add new API to gtk-doc
      Prepare 0.20.4

Ludovic Ferrandis (4):
      Fix a potential crash in case of a corrupted or malformed XML file.
      Fix potential crashes in case of a bad parameter.
      Fix multiple memory leaks
      Coding convention. Remove trailing spaces.

Sébastien Bianti (1):
      Add API for retrieving device class identifiers