Add formula for pos

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

Formula/pos.rb

@@ -0,0 +1,20 @@
+require 'formula'
+
+class Pos <Formula
+  url 'http://www.finkproject.org/bindist/dists/fink-0.9.0/main/source/utils/pos-1.2.tgz'
+  md5 'c667fb4ca38c96494f888ade9fb4e40a'
+  homepage "http://sage.ucsc.edu/~wgscott/xtal/wiki/index.php/Unix_and_OS_X:_The_Absolute_Essentials"
+
+  def cdf_script
+    <<-END
+#!/bin/bash
+cd "$(posd)"
+END
+  end
+    
+  def install
+    bin.install %w[bin/fdc bin/posd]
+    (bin+'cdf').write cdf_script
+    share.install %w[Finder_Toolbar_Applications.dmg.gz iTerm.webloc]
+  end
+end