[libsigc++2] Created tag 2.5.4

[Murray Cumming <murrayc src gnome org>]

The unsigned tag '2.5.4' was created.

Tagger: Murray Cumming <murrayc murrayc com>
Date: Thu Sep 3 18:24:59 2015 +0200

    2.5.4

Changes since the last tag '2.5.2':

Chun-wei Fan (5):
      MSVC Projects: Overhaul The Projects
      MSVC Builds: Rename MSVC_Net2010/ to MSVC_Net2013/
      MSVC Builds: Remove MSVC 2005 and 2008 projects
      MSVC Builds: Add Forgotten Files
      MSVC Builds: Use Windows Line Endings for .sln

Murray Cumming (21):
      type_trait: Define and use type_trait_pass/take_t aliases.
      type_traits.h: Remove the unused type and pointer types.
      C++11: deduce_result_type.h: Add and use a deduce_result_t<> alias.
      exception_catch.h: Generate deduce_result_type for the void specializations too.
      tests: Use sigc::deduce_result_t<> instead of deduce_result_type<>::type.
      deduce_result_t: Add initial T_return template parameter.
      2.5.3
      slot_base::operator=(const &): Copy blocked_ too.
      C++11 slot_base: Add move operations.
      C++11: slot*: Add move operations.
      trackable: Add move operations.
      trackable: Add missing operator=(&&) implementation.
      C++11: signal_base: Add move operations.
      trackable: move assignment operator: null the src.
      trackable: move constructor: null the src.
      Add test_trackable_move.
      Added test_slot_move
      Added test_signal_move.
      signal_base, trackable: Make move operations noexcept.
      Update tests/.gitignore
      2.5.4