Log use of the print button
Log use of the print button

# To see if the print button is used, log when it is clicked by users.
# This will not catch those pressing Ctrl-P or printing from the browser
# menu, however.
# Fix indentation in file.

ucam-cl-dtg/isaac-app,ucam-cl-dtg/isaac-app,ucam-cl-dtg/isaac-app,ucam-cl-dtg/isaac-app