title: Add a system maven dependency with a url instead of a file
body: <p>I need to depend on a jar which isn't in any maven repo.  I currently just have a system dependency like this:</p>
  
  <pre><code>&lt;dependency&gt;
      &lt;groupId&gt;com.nexua&lt;/groupId&gt;
      &lt;artifactId&gt;register&lt;/artifactId&gt;
      &lt;version&gt;1.5&lt;/version&gt;
      &lt;scope&gt;system&lt;/scope&gt;
      &lt;systemPath&gt;${basedir}/lib/register.jar&lt;/systemPath&gt;
  &lt;/dependency&gt;
  </code></pre>
  
  <p>is there some way I can have the file link to a url instead of a local file so it will stay up to date?As it stands I'll have to replace the file manually when I want it updated.</p>