[gdk-pixbuf] Created tag 2.21.6

[Matthias Clasen <matthiasc src gnome org>]

The unsigned tag '2.21.6' was created.

Tagger: Matthias Clasen <mclasen redhat com>
Date: Mon Jul 12 07:35:07 2010 -0400

    gdk-pixbuf 2.21.6

Changes since the last tag '2.21.4':

Colin Walters (2):
      [autogen.sh] Support NOCONFIGURE, like gnome-common
      Include alias header when using built-in loaders

Emmanuele Bassi (1):
      Clean up configure.ac a bit

Fridrich Å trba (1):
      Check for different versions of libpng not just libpng12

Matthias Clasen (9):
      Bump version
      Bring back deprecated api
      Reallow single includes
      Update NEWS for 2.21.5
      Fix the pltcheck.sh script to actually catch PLT entries
      Try to fix !srcdir builds wrt to introspection
      Replace the aliasing hacks by -Bsymbolic-functions
      Updates
      Bump version

Tor Lillqvist (1):
      Use correct autoconf variables in gdk_pixbuf.rc.in