Cleaned up shop-handling code considerably.

Instead of shops passing around global id_arr arrays, shops use the newly added third argument to item_def::name() which indicates whether to override item ID status. This means that the shop ID SIGHUP protection is now unnecessary; it's been removed. Hopefully I caught all the places where the stash tracker tries to get item names and fixed them, but I might have missed something.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@1359 c06c8d41-db1a-0410-9941-cceddc491573

Created by  haranp  on April 24, 2007
2KTJHQUX2LTU2BCLS5YXVRRKMOYKKIZAPF2LBKORFGSHEN5IO3IAC
Change contents