Report download
This PR adds a "CSV" button in the top right corner of the summary view. Clicking the button downloads the results in a CSV file.
The code needs to be cleaned up and I haven't thoroughly tested yet, but I want to go ahead and get this out there so that I can start collecting feedback.
Issue #111
Just a note that the main developer on this project is on leave for the next several weeks, so PRs will be stalled.
I've put this into branch 'pmcelhaney-report-download' for now with a few changes. Will look at a merge after more testing and confirmation of the location we would add the button to download (It looks ok where it is imho, but visually it doesn't look clickable so I'll get some input from other colleagues first).