Add missing database entries.

This commit adds entries for the following items:
    - Credit card
    - Silver bell
    - Bell
    - Walking shoes
    - Iron shoes
    - Hard shoes
    - Dragonbane
    - Gauntlets of Power
    - Gauntlets of Fumbling
    - Gauntlets of Dexterity
    - Potion of Sickness
    - Splashes of Venom (Various)
    - Shields (Various)

The following monsters also now have associated entries:
    - Stalker

dat/data.base

@@ -503,6 +503,18 @@ bell of opening
 	* Old Tom was the single cracked bronze bell in the University
 	bell tower.
 		[ Eric, by Terry Pratchett ]
+*bell
+	They were old Chimes, trust me.  Centuries ago, these Bells had
+	been baptized by bishops: so many centuries ago, that the register
+	of their baptism was lost long, long before the memory of man, and
+	no one knew their names.  They had had their Godfathers and 
+	Godmothers, these Bells (for my own part, by the way, I would
+	rather incur the responsibility of being Godfather to a Bell than
+	a Boy), and had their silver mugs no doubt, besides.  
+	But Time had mowed down their sponsors, and Henry the Eighth had
+	melted down their mugs; and they now hung, nameless and mugless, 
+	in the church-tower.
+		[ The Chimes, by Charles Dickens ]
 blindfold
 	The blindfolding was performed by binding a piece of the
 	yellowish linen whereof those of the Amahagger who condescended
@@ -597,6 +609,7 @@ boomerang
 		[ The Last Continent, by Terry Pratchett ]
 ~*jack*boot*
 *boot*
+*shoes
 	In Fantasyland these are remarkable in that they seldom or
 	never wear out and are suitable for riding or walking in
 	without the need of Socks.  Boots never pinch, rub, or get
@@ -1068,6 +1081,11 @@ cream pie
 	twelve, you could have gotten away with it then.  The cream pie
 	of justice flies one way," Miles snickered.
 		[ The Vor Game, by Lois McMaster Bujold ]
+credit card
+charge card
+	Anyone who lives within their means suffers from a lack of
+	imagination.
+		[ Oscar Wilde ]
 *crocodile
 	A big animal with the appearance of a lizard, constituting
 	an order of the reptiles (_Loricata_ or _Crocodylia_), the
@@ -1402,6 +1420,14 @@ doppelganger
 	make of steel.
 		[ The Last Book of Swords: Shieldbreaker's Story,
 			by Fred Saberhagen ]
+dragonbane
+	And now the youth
+	was to enter the line of battle with his lord,
+	his first time to be tested as a fighter.
+	His spirit did not break and the ancestral blade
+	would keep its edge, as the dragon discovered
+	as soon as they came together in combat.
+		[ Beowulf, translated by Seamus Heaney ]
 *drum*
 	Many travelers have seen the drums of the great apes, and
 	some have heard the sounds of their beating and the noise of
@@ -1976,6 +2002,11 @@ giant humanoid
 	boulders as weapons, hurling them over large distances.  All
 	types of giants share a love for men - roasted, boiled, or
 	fried.  Their table manners are legendary.
+*gloves
+gauntlets*
+	And her old Uncle William used to say a lady is known by her
+	shoes and her gloves.
+		[ Mrs. Dalloway, by Virginia Woolf ]
 # note: "gnomish wizard" is a monster
 ~gnome ??m*
 #~gnom* cave*man
@@ -4040,6 +4071,16 @@ user
 	Might just kill you.
 		[ It's a Jungle Out There, by Randy Newman ]
 #			[ theme song from "Monk" ]
+poison
+poisoned
+potion of sickness
+*venom
+	Fate intervened. Some of us, that day, she led inexorably
+	through the gates of death. Some of us, innocent and unsuspecting,
+	took, unwillingly, that one last step to oblivion. Some of us took 
+	very little sugar.
+		[ We Have Always Lived in the Castle,
+			by Shirley Jackson ]
 polearm
 * polearm
 partisan
@@ -4710,6 +4751,22 @@ shark
 	that no other creature in nature could make -- a bomb from
 	the depths.
 		[ Close to Shore, by Michael Capuzzo ]
+*shield
+	In his hands he took his shield, all glittering: no one ever
+	broke it with a blow or crushed it. And a wonder it was to see; 
+	for its whole orb shimmered with enamel and white ivory and 
+	electrum, and it glowed with shining gold; and there were zones 
+	of cyanus1drawn upon it. In the center was Fear worked in adamant, 
+	unspeakable, staring backwards with eyes that glowed with fire.
+	His mouth was full of teeth in a white row, fearful and  daunting,
+	and upon his grim brow hovered frightful Strife who arrays the
+	throng of men: pitiless she, for she took away the mind and senses
+	of poor wretches who made war against the son of Zeus. Their souls
+	passed beneath the earth and went down into the house of Hades; 
+	but their bones, when the skin is rotted about them, crumble away
+	on the dark earth under parching Sirius.
+		[ Hesiod, The Homeric Hymns and Homerica, 
+			translation by Hugh G. Evelyn-White ]
 shito
 	A Japanese stabbing knife.
 shopkeeper
@@ -4975,6 +5032,12 @@ stair*
 	Dr. Peter Venkman:  They go up.
 		[ Ghostbusters, directed by Ivan Reitman,
 		  written by Dan Ackroyd and Harold Ramis ]
+stalker
+invisible stalker
+	The Writer: Won't they come after us?
+	The Stalker: No, they're scared to death of it.
+	The Writer: Of what?
+		[ Stalker, directed by Andrei Tarkovsky ]
 ~statue trap
 statue*
 	Then at last he began to wonder why the lion was standing so