small update to text panel editor

src/app/panels/text/editor.html

@@ -9,10 +9,9 @@
   </div>
 
   <label class=small>Content
-    <span ng-show="panel.mode == 'html'">(This area uses HTML sanitized via AngularJS's <a href='http://docs.angularjs.org/api/ngSanitize.$sanitize'>$sanitize</a> service)</span>
     <span ng-show="panel.mode == 'markdown'">(This area uses <a target="_blank" href="http://en.wikipedia.org/wiki/Markdown">Markdown</a>. HTML is not supported)</span>
   </label>
 
-  <textarea ng-model="panel.content" rows="6" style="width:95%" ng-change="render()" ng-model-onblur>
+  <textarea ng-model="panel.content" rows="20" style="width:95%" ng-change="render()" ng-model-onblur>
   </textarea>
-</div>
+</div>