Removing storing newContent from last request in PointrelJournal and
PointrelIndex to try to avoid bug from last request's newContent somehow
being appended to content.
Changing pointrel_utility_classes.js so only puts up alert when there is
no error-handling callback defined, and also so it consistently logs
those errors in any case
Fixed bad relative url path in uploader for download link; added display
link as well.
Minor change to error logging in editor.html
General cleanup in pointrel_utility_classes.js
Refactored jQuery and Dojo pointrel interfaces to server to have less
redundant code and to have more consistent error handling
Distinguishing different types of Chat programs in HTML