2.3.1:

2012-10-18  Murray Cumming  <murrayc@murray.com>

	Update the Doxyfile.in syntax.

	* docs/reference/Doxyfile.in: By running doxygen -u
	on it.

2012-10-17  Kjell Ahlstedt  <kjell.ahlstedt@bredband.net>

	Add some missing newin{}.

	* docs/reference/Doxyfile.in: Add ALIASES newin.
	* sigc++/functors/macros/functor_trait.h.m4: Add newin{2,2,11} to
	SIGC_FUNCTORS_DEDUCE_RESULT_TYPE_WITH_DECLTYPE.
	* sigc++/signal_base.h: Add newin{2,4} to signal_impl::blocked(), block() and
	signal_base::blocked(), block(), unblock(). Bug #153780.

2012-10-12  Kjell Ahlstedt  <kjell.ahlstedt@bredband.net>

	signal_base: Add blocked(), block(), unblock().

	* sigc++/signal_base.[h|cc]: Add signal_impl::blocked(), block() and
	signal_base::blocked(), block(), unblock(). Bug #153780.