Add lacking sources for the PDF documentation, making the package
DFSG-compliant.

 -- Rafael Laboissiere <rafael@debian.org>  Sun, 17 Feb 2008 16:33:34 +0100

Index: optim-1.0.2/doc/readme.txt
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ optim-1.0.2/doc/readme.txt	2004-06-21 18:29:30.000000000 +0200
@@ -0,0 +1,5 @@
+mintoolkit.lyx is a LyX (www.lyx.org) file. You can see the pdf
+output at http://pareto.uab.es/mcreel/MINTOOLKIT
+
+the optim-mini-howto refers to bfgs.m and bs_gradient.m,
+which are now replaced by bfgsmin.cc and numgradient.cc, respectively