Document the VERSION property of the jQuery plugins; fixes #15202

[skip sauce]

docs/_includes/js/overview.html

@@ -68,6 +68,12 @@ $.fn.bootstrapBtn = bootstrapButton            // give $().bootstrapBtn the Boot
 $('#myModal').on('show.bs.modal', function (e) {
   if (!data) return e.preventDefault() // stops modal from being shown
 })
+{% endhighlight %}
+
+  <h3 id="js-version-nums">Version numbers</h3>
+  The version of each of Bootstrap's jQuery plugins can be accessed via the <code>VERSION</code> property of the plugin's constructor. For example, for the tooltip plugin:
+{% highlight js %}
+$.fn.tooltip.Constructor.VERSION // => "{{ site.current_version }}"
 {% endhighlight %}
 
   <h3 id="js-disabled">No special fallbacks when JavaScript is disabled</h3>

docs/_includes/nav/javascript.html

@@ -6,6 +6,7 @@
     <li><a href="#js-programmatic-api">Programmatic API</a></li>
     <li><a href="#js-noconflict">No conflict</a></li>
     <li><a href="#js-events">Events</a></li>
+    <li><a href="#js-version-nums">Version numbers</a></li>
     <li><a href="#js-disabled">When JavaScript is disabled</a></li>
     <li><a href="#callout-third-party-libs">Third-party libraries</a></li>
   </ul>