title: PHPMD @bin_dir@ error
body: <p>I try to install PHPMD on Windows computer using the comments below</p>
  
  <pre><code>$ git clone git://github.com/phpmd/phpmd.git
  cd phpmd
  $ git submodule update --init
  $ php composer.phar install
  </code></pre>
  
  <p>After installed PHPMD, I am getting the below error when I am trying to use PHPMD on Windows command prompt</p>
  
  <pre><code>Could not open input file: @bin_dir@\phpmd
  </code></pre>
  
  <p>Any one can help me to fix this issue</p>