Added forumla for metalua

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

Formula/metalua.rb

@@ -0,0 +1,19 @@
+require 'formula'
+
+class Metalua <Formula
+  head 'http://github.com/fab13n/metalua.git'
+  url 'http://github.com/fab13n/metalua/tarball/0.5-rc2'
+  homepage 'http://metalua.luaforge.net/'
+  md5 'c841976b3a2fe9b7322aaca16927c9e2'
+
+  depends_on 'lua'
+
+  def install
+    Dir.chdir "src"
+    ENV["INSTALL_BIN"] = "#{prefix}/bin"
+    ENV["INSTALL_LIB"] = "#{prefix}/lib"
+
+    system "./make.sh"
+    system "./make-install.sh"
+  end
+end