Convert shortcut strings to unicode (required by Qt/Mac); restore

Convert shortcut strings to unicode (required by Qt/Mac); restore
shortcuts in menus on the Mac.

	* src/frontends/qt4/QLPopupMenu.C (addBinding): remove special
	OS X code (and hopefully restore shortcuts for LyX/Mac).

	* src/lyxfunc.C (processKeySym, dispatch, sendDispatchMessage,
	viewStatusMessage): adapt to changes below.

	* src/MenuBackend.C (binding): adapt to changes below.

	* src/kbmap.C (printKey, print, printbindings): return a
	docstring; adapt to kbsequence changes.

	* src/kbsequence.C (print, printOptions): return a docstring.

	* src/frontends/LyXKeySym.h (print): return a docstring.

	* src/frontends/qt4/QLyXKeySym.C (print): return a docstring.
	(qprint): remove.

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@16265 a592a061-630c-0410-9148-cb99ea01b6c8