Merge pull request #48 from jkevingutierrez/patch-3

Fix quotes in video_chooser.html

wagtailvideos/templates/wagtailvideos/widgets/video_chooser.html

@@ -5,7 +5,7 @@
 {% block chosen_state_view %}
     <div class="preview-image">
         {% if video and video.thumbnail %}
-            <img src='{{video.thumbnail.url}}' width="165" height="165" class="show-transparency">
+            <img src="{{video.thumbnail.url}}" width="165" height="165" class="show-transparency">
         {% else %}
             <img width="165" height="165" class="show-transparency">
         {% endif %}