I recently updated a client website from 2.10.4 to 2.11.0 and had a bit of trouble getting the imageslider to work. This may be an intermittant error, not sure but I had to delete and reinstall the plugin several times before I realized that the plugin was NOT automatically attaching the javascript file for the imageslider

Code:
<script type="text/javascript" src="plugins/imageslider/class.viewer.js"></script>
to the template when an imageslider was added to a page. I finally realized when comparing the site with another one of our websites that the class viewer was not loading. I manually attached the class viewer to the template to clear the error.

Just reporting this glitch in case someone else is having problems with the Imageslider, its worked well on a number of websites I've built, but this took two hours to figure out why it wasn't working. Hopefully a future update will ensure that the class viewer attaches properly to the template.