stub in asciidoc installation docs for darshan-runtime and darshan-util

git-svn-id: https://svn.mcs.anl.gov/repos/darshan/trunk@519 3b7491f3-a168-0410-bf4b-c445ed680a29

README

 The Darshan source tree is divided into two parts:
 
-- darshan-runtime: configure and install on systems where you intend to 
-  instrument MPI applications
+- darshan-runtime: to be installed on systems where you intend to 
+  instrument MPI applications.  See darshan-runtime/doc/darshan-runtime.txt
+  for installation instructions.
 
-- darshan-util: configure and install on systems where you intend to analyze
-  log files produced by darshan-runtime
+- darshan-util: to be installed on systems where you intend to analyze
+  log files produced by darshan-runtime.  See
+  darshan-util/doc/darshan-util.txt for installation instructions.
 
-For installation instructions please visit
+General documentation can be found on the Darshan documentation web page:
 http://www.mcs.anl.gov/darshan/documentation/
 
 The darshan-test directory contains various test harnesses, benchmarks,

darshan-runtime/doc/Makefile

+PDF=darshan-runtime.pdf
+
+all:: $(PDF)
+
+%.pdf: %.txt
+	a2x -f pdf $<
+
+clean::
+	rm -f $(PDF)

darshan-runtime/doc/darshan-runtime.txt

+Darshan-runtime installation and usage
+======================================
+
+== Introduction
+
+This document...

darshan-util/doc/Makefile

+PDF=darshan-util.pdf
+
+all:: $(PDF)
+
+%.pdf: %.txt
+	a2x -f pdf $<
+
+clean::
+	rm -f $(PDF)

darshan-util/doc/darshan-util.txt

+Darshan-util installation and usage
+===================================
+
+== Introduction
+
+This document...