Added option to ignore minimized windows during cycling.

Added CycleIgnoreMinimized configuration option settable on Expert page in WPrefs.
When option is set, switch panel cycling ignores minimized (grayed) windows. They
are still visible and can be selected using left/right arrows or mouse click.

WPrefs.app/Expert.c

@@ -62,6 +62,9 @@ static const struct {
 	{ N_("Cycle windows only on the active head."),
 	  /* default: */ False, OPTION_WMAKER, "CycleActiveHeadOnly" },
 
+	{ N_("Ignore minimized windows when cycling."),
+	  /* default: */ False, OPTION_WMAKER, "CycleIgnoreMinimized" },
+
 	{ N_("Show workspace title on Clip."),
 	  /* default: */ True, OPTION_WMAKER, "ShowClipTitle" },