Added the atexit module and documentation from Skip Montanaro
<skip@mojam.com>. Revisions to the markup to make it pass LaTeX, added
an index entry and a reference from the sys.exitfunc documentation.
This closes SourceForge patch #100620.
diff --git a/Doc/Makefile.deps b/Doc/Makefile.deps
index b6a127f..2ad97e9 100644
--- a/Doc/Makefile.deps
+++ b/Doc/Makefile.deps
@@ -228,6 +228,7 @@
../lib/libstatvfs.tex \
../lib/libtty.tex \
../lib/libasyncore.tex \
+ ../lib/libatexit.tex \
../lib/libcfgparser.tex
# LaTeX source files for Macintosh Library Modules.