[glibmm] Created tag 2.54.0

[Murray Cumming <murrayc src gnome org>]

The unsigned tag '2.54.0' was created.

Tagger: Murray Cumming <murrayc murrayc com>
Date: Wed Sep 13 11:21:31 2017 +0200

    2.54.0

Changes since the last tag '2.52.1':

Alexander Rössler (1):
      Glib::Variant: Add template specialization for std::tuple

Kjell Ahlstedt (15):
      gmmproc: Add new elements types for the docs_override.xml files
      Glib, Gio: docs_override.xml: Add substitute_enumerator_name elements
      gmmproc: Fix _WRAP_ENUM for enumerators with apostrophes
      gmmproc: Remove obsolete TODO comments
      gmmproc: Accept curly braces in default values in _WRAP macros
      gmmproc: Write default values of properties to generated documentation
      generate_extra_defs.cc: Write default values of properties to .defs files
      Regenerate glib_signals.defs and gio_signals.defs
      tests/glibmm_variant: Add test of Variant<std::tuple>
      Glib::Variant: Improved support for D-Bus object paths and signatures
      gmmproc: Warn for unmatched deprecations in signals and properties
      gmmproc: Write signal flags to generated documentation
      generate_extra_defs.cc: Write signal flags to .defs files
      Regenerate gio_signals.defs and gio_signals.defs.patch
      Gio::ActionGroup, Settings: Add detail_name to some _WRAP_SIGNAL()s

Murray Cumming (1):
      2.54.0