Add yuicompressor 2.4.2.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>

Formula/yuicompressor.rb

@@ -0,0 +1,15 @@
+require 'formula'
+
+class Yuicompressor <Formula
+  url 'http://yuilibrary.com/downloads/yuicompressor/yuicompressor-2.4.2.zip'
+  homepage 'http://yuilibrary.com/project/yuicompressor'
+  md5 '2a526a9aedfe2affceed1e1c3f9c0579'
+
+  def install
+    libexec.install "build/yuicompressor-2.4.2.jar"
+    (bin+'yuicompressor').write <<-EOS.undent
+      #!/bin/sh
+      java -jar "#{libexec}/yuicompressor-2.4.2.jar" $@
+    EOS
+  end
+end