title: Installing packages with composer
body: <p>I am trying to install gitlist from github. In the doc, I am told to install as dependencies : 
  some packages as phpcpd, phploc. So I installed composer and I added in the composer.json the folowing entries "phpcpd/phpcpd": "1.4.<em>", "phploc/phploc": "1.7.</em>". When I try o build the project with ant, I have the following message :</p>
  
  <pre><code>Your requirements could not be resolved to an installable set of packages.
       [exec] 
       [exec]   Problem 1
       [exec]     - The requested package phpcpd/phpcpd * could not be found.
       [exec]   Problem 2
       [exec]     - The requested package phploc/phploc * could not be found.
  </code></pre>
  
  <p>So I downloaded the phpcpd.phar and phploc.phar files but I don't know what I can do with it. Can I directly extract the files from the archive and put it in the vendor folder? By the way, why the packages are not found by composer</p>