added formula for tintin++

TinTin++, aka TT++, is a free Mud client for Windows, Linux, and Mac OS X.

Formula/tintin.rb

@@ -0,0 +1,13 @@
+require 'brewkit'
+
+class Tintin <Formula
+  url 'http://downloads.sourceforge.net/project/tintin/TinTin%2B%2B%20Source%20Code/1.99.7/tintin-1.99.7.tar.gz'
+  homepage 'http://tintin.sf.net'
+  md5 '397769453038db1697e460fe24218d7d'
+
+  def install
+    Dir.chdir "src"
+    system "./configure", "--prefix=#{prefix}"
+    system "make install"
+  end
+end