title: where does mvn tomcat:run come in this project
body: <p>I'm in the process of learning maven and stumbled on <a href="https://github.com/smanek/students" rel="nofollow">this</a> project. The README says to run <code>mvn tomcat:run</code> to execute the proejct. I tried this and it works. However, I don't understand where is that command coming from? the <a href="https://github.com/smanek/students/blob/master/pom.xml" rel="nofollow">pom.xml</a> doesn't have any tomcat plugins. </p>