Option to change the width of the person divs

[justincy]

The person divs are hard-coded to be 180px wide. There should be an easy way to change that.

[justincy]

Note that the JS needs to what the width of the person objects are so that it can calculate horizontal spacing.

There are different ways to do this while still allowing the width to be changed:

1. Change nothing. Just document where to change the width in both the CSS and JS.
2. Only specify the width in the CSS and detect it automatically via JS.
3. Only specify the width in the JS (dynamically as an option) and add the CSS width rule via JS.

[justincy]

I think I prefer (2) because (3) could get messy if the width is changed after the page has loaded and (1) is just meh.

[justincy]

The best way to detect the width via JS is to add an element with the person class onto the page, detect it's width, then remove. The great thing about this is it doesn't matter whether you change the width in the original CSS file or override it with your own rule; it will always properly detect what the width is going to be when it's displayed.