bug#8932: 23.2; refcard names

[harven]

It would be nice if the names of the refcards provided with emacs
were standardized, and mentioned somewhere in the manual. 
At the moment, here is what I find on my 23.2 install.

  refcard.pdf -- english
  fr-refcard.pdf -- french
  de-refcard.pdf -- german
  pl-refcard.pdf -- polish
  ru-refcard.pdf -- russian
  cs-refcard.pdf -- czech
  pt-br-refcard.pdf -- portuguese
 
  survival.tex -- another reference card for emacs
  dired-ref.pdf -- reference card for dired
  calccard.pdf -- reference card for calc mode
  orgcard.pdf -- reference card for org mode
  gnus-refcard.pdf -- reference card for gnus
  gnus-booklet.pdf -- extended list of shortcuts for gnus
  vipcard.tex -- reference card for VIP, also known as vi-mode
  vipercard.tex -- reference card for viper mode
  tex-ref.pdf.gz -- reference card for auctex (!)

  and some others
  fr-survival.tex, sk-survival.tex, cs-survival.tex,
  fr-dired-ref.tex, sk-dired-ref.tex, cs-dired-ref.tex

Names like language-mode-refcard.pdf would make them easier to locate.
Also they do not seem to be mentioned in the emacs manual, at least not in
the concept index.


In GNU Emacs 23.2.1 (i486-pc-linux-gnu, GTK+ Version 2.20.0)
 of 2010-12-11 on raven, modified by Debian
Windowing system distributor `The X.Org Foundation', version 11.0.10707000
configured using `configure  '--build' 'i486-linux-gnu' '--build' 
'i486-linux-gnu' '--prefix=/usr' '--sharedstatedir=/var/lib' 
'--libexecdir=/usr/lib' '--localstatedir=/var/lib' '--infodir=/usr/share/info' 
'--mandir=/usr/share/man' '--with-pop=yes' 
'--enable-locallisppath=/etc/emacs23:/etc/emacs:/usr/local/share/emacs/23.2/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/23.2/site-lisp:/usr/share/emacs/site-lisp:/usr/share/emacs/23.2/leim'
 '--with-x=yes' '--with-x-toolkit=gtk' '--with-toolkit-scroll-bars' 
'build_alias=i486-linux-gnu' 'CFLAGS=-DDEBIAN -g -O2' 'LDFLAGS=-g' 'CPPFLAGS=''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: fr_FR.UTF-8
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default enable-multibyte-characters: t