Add formula for OOREXX

OOREXX is Object Oriented REXX, an implementation of the REXX
scripting language.

Formula/oorexx.rb

@@ -0,0 +1,12 @@
+require 'formula'
+
+class Oorexx <Formula
+  url 'http://downloads.sourceforge.net/project/oorexx/oorexx/4.0.0/ooRexx-4.0.0.tar.gz'
+  homepage 'http://www.oorexx.org/'
+  md5 '938e8fbf254c9e043b92a3530a3d8f7d'
+
+  def install
+    system "./configure", "--prefix=#{prefix}", "--disable-debug", "--disable-dependency-tracking"
+    system "make install"
+  end
+end