src/inline-stock-unmaximize.h, src/menu.c,  src/stock_icons.c,
	  src/stock_icons.h, src/inline-stock-minimize.h, 
	  src/inline-default-icon.h, src/inline-stock-rollup.h,
	  src/main.c, src/Makefile.am: Rework the window menu to improve
	  consistency with libwnck menu (Bug #4531)

(Old svn revision: 28506)