jousting

Part I:  it's possible to use two-weapon combat while wielding a
lance (which seems odd to me); the second weapon would hit even if the
the first delivered a lance jousting blow that knocked the target away.

     Part II:  always getting the joust knockback effect when hitting
with a lance while mounted was too powerful; implement a suggestion
from the newsgroup that it be a random chance based on skill level.

     Related:  it's now possible to break your lance when hitting; when
adding that, I noticed that it was theoretically possible (didn't try
to reproduce) for a shattered boomerang or mirror to yield the stagger
bonus sometimes given for unarmed attacks.

src/weapon.c

@@ -286,13 +286,6 @@ struct monst *mon;
 		otmp->oclass == BALL_CLASS || otmp->oclass == CHAIN_CLASS) {
 	    int bonus = 0;
 
-#ifdef STEED
-		/* KMH -- Lances are especially made for riding */
-		if (otmp == uwep && u.usteed &&
-				objects[otmp->otyp].oc_skill == P_LANCE)
-			bonus += d(2,10);
-#endif
-
 	    if (otmp->blessed && (is_undead(ptr) || is_demon(ptr)))
 		bonus += rnd(4);
 	    if (is_axe(otmp) && is_wooden(ptr))