3.17.50 (unstable): * Use (and require) C++11. (Kjell Ahlstedt) * C++11: Use the auto, override, and nullptr keywords. (Murray Cumming) * Update the "Menus and Toolbars" chapter. (Kjell Ahlstedt) * recent_files example: Add toolbar and accelerator keys. (Kjell Ahlstedt) * placessidebar example: Remove use of deprecated set_show_connect_to_server(). (Murray Cumming) * gmmproc chapter: - Add description of the 'newin' parameter of some _WRAP macros. Bug #748856 - Add description of the detail_name parameter in _WRAP_SIGNAL. Bug #749034 - Add description of _IGNORE_PROPERTY and _IGNORE_CHILD_PROPERTY. - Add description of the keep_return parameter in _WRAP_VFUNC (Kjell Ahlstedt) * Fix the build with -Wshadow. (Murray Cumming) * Examples: Remove remaining uses of GLIBMM_DEFAULT_SIGNAL_HANDLERS_ENABLED. (Murray Cumming)