Changes in 1.6

• The question type can now be used to make screen recordings, in addition to audio and video.
• During recording, we now show both the length of the recording so far, and the time left before reaching the limit, with a progress-bar-like display.
• The way audio recordings are converted to MP3 has been changed. This now happens as a separate stage after the recording has been made. This is more reliable, but adds a short delay. (Why are we using MP3 format? Because that is what the OU needs. When we get the time, we are planning add an option to select which format to use.)
• There is a capability to control whether users are allowed to download recordings.
• The question text is now validated when the 'Update the form' button is clicked.
• The form now has option to control what happens when used with the Self-assessment question behaviour.
• Admin imposed time-limit now cannot be bypassed by a question setting.
• Better display of what was recorded in the response history.