Ignore numlock (Mod2Mask) for button events too.

Conflicts:
	config.def.h
	st.c

st.c

@@ -3579,7 +3579,6 @@ kpress(XEvent *ev) {
 		return;
 
 	len = XmbLookupString(xw.xic, e, buf, sizeof buf, &ksym, &status);
-	e->state &= ~Mod2Mask;
 	/* 1. shortcuts */
 	for(bp = shortcuts; bp < shortcuts + LEN(shortcuts); bp++) {
 		if(ksym == bp->keysym && match(bp->mod, e->state)) {