Add transition to ui-modal demo

Author: ajoslin

index.html

@@ -591,7 +591,7 @@ <h1>Modal</h1>
 						<h3>What?</h3>
 						<p>Takes the twitter bootstrap modal and lets you assign an ng-model to it.  You can open/close the modal any way you want: data-* attributes, or use elm.modal('show'), or whatever.  The ng-model you give will always correspond to whether the modal is opened or not, and if you set it it will also change the modal.
 						<p>
-							<div id="modalGuy" class="modal hide" ui-modal ng-model="modalShown">
+							<div id="modalGuy" class="fade" ui-modal ng-model="modalShown">
 								<div class="modal-header"><h1>Modalin'!</h1></div>
 								<div class="modal-body">
 									<p>Cool beans, dude.</p>
@@ -611,7 +611,7 @@ <h3>Why?</h3>
 						<h3>How?</h3>
 						<pre class="prettyprint linenums" ng-non-bindable>
 &lt;script src="http://twitter.github.com/bootstrap/assets/js/bootstrap-modal.js"&gt;&lt;/script&gt;
-&lt;div ui-modal ng-model="modalShown" id="myModal"&gt;
+&lt;div ui-modal class="fade" ng-model="modalShown" id="myModal"&gt;
   Cool, a modal dialog!
   &lt;a data-dismiss="modal"&gt;Close 1&lt;/a&gt;
   &lt;a ng-click="modalShown=false"&gt;Close 2&lt;/a&gt;