title: Jenkins plugin not showing up
body: <p>probably a newbish question, but that's what I am. I need to run a post build script, so I installed the <a href="https://wiki.jenkins-ci.org/display/JENKINS/Post+build+task" rel="nofollow">post-build-task plugin</a> onto my Jenkins server (v2.5). For some reason, when I go to the job configuration page, there is no checkbox or anything for the plugin. Is there some common pitfall I am stepping into or something?</p>
  
  <p>Edit: I have restarted the server.</p>