changed es/Leame.1st
upgraded the list of files on translation and revision.

added a term (builtin) to the glossary

changed es/concepts.tex
file added to define labels needed by other tex files

changed es/preface.tex
killed a TODO

changed es/tour-basic.tex
I have began the translation of this file. 34% completed, according to vim

changed es/undo.tex
file added to define labels needed by other tex files

     1.1 --- a/es/undo-simple.dot	Fri Oct 17 05:59:49 2008 -0500
     1.2 +++ b/es/undo-simple.dot	Sun Oct 19 19:56:21 2008 -0500
     1.3 @@ -1,4 +1,4 @@
     1.4  digraph undo_simple {
     1.5  	"primer cambio" -> "segundo cambio";
     1.6 -	"segundo cambio" -> "volver\nsegundo cambio";
     1.7 +	"segundo cambio" -> "reversar\nsegundo cambio";
     1.8  }