Rename of INSTALL to INSTALL.txt, etc. to help OSX case insentivity issues.

doc/contents.html

@@ -27,14 +27,16 @@
 
 <h2><u>Contents of distribution</u></h2>
 ./&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Root directory.
-<blockquote><tt><a href="../README">README</a>&nbsp;&nbsp;&nbsp;&nbsp; </tt>text
+<blockquote><tt><a href="../README.txt">README</a>&nbsp;&nbsp;&nbsp;&nbsp; </tt>text
 bare bones readme file.
-<br><tt><a href="../COPYING">COPYING</a>&nbsp;&nbsp;&nbsp; </tt>text&nbsp;
+<br><tt><a href="../LICENSE.txt">LICENSE</a>&nbsp;&nbsp;&nbsp; </tt>text&nbsp;
 file containing the details of the OSG's Open Source LGPL license.
-<br><tt><a href="../AUTHORS">AUTHORS</a>&nbsp;&nbsp;&nbsp; </tt>text file
+<br><tt><a href="../AUTHORS.txt">AUTHORS</a>&nbsp;&nbsp;&nbsp; </tt>text file
 containing names of contributors to the osg.
-<br><tt><a href="../NEWS">NEWS</a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </tt>text
+<br><tt><a href="../NEWS.txt">NEWS</a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </tt>text
 file listing coarse grained changes between releases.
+<br><tt><a href="../INSTALL.txt">INSTALL</a>&nbsp;&nbsp;&nbsp; </tt>text
+file with notes on how to install the osg.
 <br><tt><a href="../ChangeLog">ChangeLog</a>&nbsp; </tt>text file listing
 fine grained changes between releases.
 <br><tt><a href="../Makefile">Makefile</a>&nbsp;&nbsp; </tt>Unix makefile.