title: Attribute selector containing a colon is not finding any elements
body: <p>I have following HTML-Tags and want to select them by jQuery:</p>
  <pre><code>&lt;div foo:bar=&quot;test&quot;&gt;&lt;/div&gt;
  &lt;span foo:bar=&quot;test2&quot;&gt;&lt;/span&gt;
  &lt;xxx foo:bar=&quot;test3&quot;&gt;&lt;/xxx&gt;
  </code></pre>
  <p>So, I want to select all tags, that have the attribute <code>foo:bar</code>.</p>
  <p>I tried following:</p>
  <pre><code>$('[foo:bar]').addClass(&quot;fooBar&quot;);
  // Error: Syntax error, unrecognized expression: [adv:sensorid]
  </code></pre>
  <p>I know, that the correct Syntax would be something like <code>data-foo-bar</code>, but I have to use <code>foo:bar</code>.</p>
  <p>Is this even possible in jQuery?</p>
  <p>I can even use AngularJS if it helps somehow. Thank you very much!</p>