Add slony1 formula

Add slony1 formula for homebrew

Library/Formula/slony1.rb

@@ -0,0 +1,17 @@
+require 'formula'
+
+class Slony1 < Formula
+  homepage 'http://slony.info/'
+  url 'http://slony.info/downloads/2.1/source/slony1-2.1.2.tar.bz2'
+  sha1 '47449fbc742a25eefdab088ab650973416bccb53'
+
+  def install
+    system "./configure", "--disable-debug", "--disable-dependency-tracking",
+                          "--prefix=#{prefix}"
+    system "make install"
+  end
+
+  def test
+    system "slon", "-v"
+  end
+end