update book tribute

Changes to be committed:
	modified:   doc/fixes35.0
	modified:   include/extern.h
	modified:   src/do_name.c
	modified:   src/objnam.c

This pretty much completes the code portion of the book tribute.
- The book will appear in the rare books shop.
- When you read the book, a random passage is drawn for a
  tribute file (suggested by Mike).
- The book cannot be renamed because it already has a
  name (observed/suggested by Sean).

The data file (dat/tribute) has a few test passages, but needs to be
filled out. Sean and Mike Stephenson have indicated that
possibly they may be able to help contribute to that. Ideally,
there should be at least one passage from each of the books.

include/extern.h

@@ -1,4 +1,4 @@
-/* NetHack 3.5	extern.h	$NHDT-Date: 1426966688 2015/03/21 19:38:08 $  $NHDT-Branch: master $:$NHDT-Revision: 1.411 $ */
+/* NetHack 3.5	extern.h	$NHDT-Date: 1428196810 2015/04/05 01:20:10 $  $NHDT-Branch: nhmall-booktribute $:$NHDT-Revision: 1.451 $ */
 /* NetHack 3.5	extern.h	$Date: 2013/11/05 00:57:53 $  $Revision: 1.380 $ */
 /* Copyright (c) Steve Creps, 1988.				  */
 /* NetHack may be freely redistributed.  See license for details. */
@@ -396,6 +396,7 @@ E struct obj *FDECL(realloc_obj,
 		(struct obj *, int, genericptr_t, int, const char *));
 E char *FDECL(coyotename, (struct monst *,char *));
 E const char *FDECL(noveltitle, (int *));
+E const char *FDECL(lookup_novel, (const char *, int *));
 
 /* ### do_wear.c ### */