This revision adds a download timer to keep track of how long image downloads take, a method to estimate the download time of images based upon calculations of the previous download times during this session, and updates to the code to use the estimated download time. It achieves the following:
1. Download times are now included in the image time on the summary screen and count down just like the exposure time.
2. Download times are now included in the total estimated time on the summary screen, so that it is a more realistic time estimate for the completion of the sequence.
3. The download time remaining is now shown in the Capture module in place of the exposure time during a download.
4. Download times and the average download time are printed to the log at the bottom of the capture module for the user's reference (this may be changed in the future).