<p>Fixed syntax error preventing immediate exit if dashboard is disabled.</p>

<p>To test:<br>
1. Flash node and run setup wizard.<br>
2. Run <code>/usr/bin/commotion-bigboard-send</code>, then <code>logread</code>. You should NOT see this message: "user.notice luci: Dashboard config error. No listener set."<br>
3. Add internet access and enable dashboard using "dashboard.commotionwireless.net".<br>
4. Rerun <code>/usr/bin/commotion-bigboard-send</code>. Your node should appear in the dashboard.</p>

<hr>

<h4>You can merge this Pull Request by running</h4>
<pre>  git pull https://github.com/opentechinstitute/commotion-dashboard-helper early-exit</pre>
<p>Or view, comment on, or merge it at:</p>
<p>  <a href='https://github.com/opentechinstitute/commotion-dashboard-helper/pull/14'>https://github.com/opentechinstitute/commotion-dashboard-helper/pull/14</a></p>

<h4>Commit Summary</h4>
<ul>
  <li>Fixed incorrect uci:get syntax preventing early exit</li>
  <li>Removed unused code</li>
</ul>

<h4>File Changes</h4>
<ul>
  <li>
    <strong>M</strong>
    <a href="https://github.com/opentechinstitute/commotion-dashboard-helper/pull/14/files#diff-0">files/bin/commotion-bigboard-send</a>
    (5)
  </li>
</ul>

<h4>Patch Links:</h4>
<ul>
  <li><a href='https://github.com/opentechinstitute/commotion-dashboard-helper/pull/14.patch'>https://github.com/opentechinstitute/commotion-dashboard-helper/pull/14.patch</a></li>
  <li><a href='https://github.com/opentechinstitute/commotion-dashboard-helper/pull/14.diff'>https://github.com/opentechinstitute/commotion-dashboard-helper/pull/14.diff</a></li>
</ul>