show error if item pasted already exists in the destination
fix delete button on image view
fix error
make image view pages with a small image (no scroll) go ahead and load the next image
move thumbnail processing to html_browser
slight change to thumbnail dir names
fix error with thumbnails.sh
for some reason, cut and paste quit working.  Complained that the Clipboard object wasn't serializable.  Changed to have Clipboard serialize and deserialize JSON
fix change password pages