Add autogen.sh, so that patch 01 can take effect.

diff -Nur milkytracker-0.90.86.old/autogen.sh milkytracker-0.90.86/autogen.sh
--- milkytracker-0.90.86.old/autogen.sh	1969-12-31 21:00:00.000000000 -0300
+++ milkytracker-0.90.86/autogen.sh	2014-07-15 20:48:32.279785438 -0300
@@ -0,0 +1,9 @@
+#!/bin/sh
+
+aclocal -I m4
+autoconf
+autoheader
+libtoolize --copy --force
+automake --add-missing --copy
+
+