Manpage improvements:

- Added a manpage for ms_print.

- Added docs/xml/manpages-index.xml, which is just used as a convenient
  single file to hang all the man pages off so they can be generated in a
  single command.

- Added facility whereby manpage generation will attempt to find the
  stylesheet in multiple places.  This means I don't have to constantly edit
  XSL_MAN_STYLE to build manpages on my machine.

- Changed vg-docs-path to start with $INSTALL instead of /usr/, because we
  can't assume that's the installation dir.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@10740 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/docs/README b/docs/README
index dcccb5f..77ecbc5 100644
--- a/docs/README
+++ b/docs/README
@@ -128,11 +128,12 @@
 Actually, I'm not sure if the 'docbook' is necessary, but 'docbook-xsl'
 definitely is.
 
-To build the man pages I also had to change the value of XSL_MAN_STYLE from this:
+To build the man pages I also changed the Makefile.am to try this
+stylesheet:
 
     /usr/share/xml/docbook/stylesheet/nwalsh/current/manpages/docbook.xsl
 
-to this:
+if it can't find this one:
 
     /usr/share/xml/docbook/stylesheet/nwalsh/manpages/docbook.xsl