Move some hard-coded string arrays into data files.

Random epitaphs, engravings and hallucinatory monsters now
live in text data files.

dat/epitaph.txt

@@ -0,0 +1,32 @@
+# Epitaphs for random headstones
+#
+#
+Rest in peace
+R.I.P.
+Rest In Pieces
+Note -- there are NO valuable items in this grave
+1994-1995. The Longest-Lived Hacker Ever
+The Grave of the Unknown Hacker
+We weren't sure who this was, but we buried him here anyway
+Sparky -- he was a very good dog
+Beware of Electric Third Rail
+Made in Taiwan
+Og friend. Og good dude. Og died. Og now food
+Beetlejuice Beetlejuice Beetlejuice
+Look out below!
+Please don't dig me up. I'm perfectly happy down here. -- Resident
+Postman, please note forwarding address: Gehennom, Asmodeus's Fortress, fifth lemure on the left
+Mary had a little lamb/Its fleece was white as snow/When Mary was in trouble/The lamb was first to go
+Be careful, or this could happen to you!
+Soon you'll join this fellow in hell! -- the Wizard of Yendor
+Caution! This grave contains toxic waste
+Sum quod eris
+Here lies an Atheist, all dressed up and no place to go
+Here lies Ezekiel, age 102.  The good die young.
+Here lies my wife: Here let her lie! Now she's at rest and so am I.
+Here lies Johnny Yeast. Pardon me for not rising.
+He always lied while on the earth and now he's lying in it
+I made an ash of myself
+Soon ripe. Soon rotten. Soon gone. But not forgotten.
+Here lies the body of Jonathan Blake. Stepped on the gas instead of the brake.
+Go away!