SAK-25523 close the samigo popup window if no CKEDITOR instances have been loaded


git-svn-id: https://source.sakaiproject.org/svn/reference/trunk@306221 66ffb92e-73f9-0310-93c1-f5514f145a0a
SAK-25523 sending the navigator user agent ruins Samigo's ability from finding the proper assessment to connect this upload to in the UploadAudio servlet


git-svn-id: https://source.sakaiproject.org/svn/reference/trunk@306225 66ffb92e-73f9-0310-93c1-f5514f145a0a