Old representation of JFK timeline.

This worked in conjunction with a sibling repo - https://github.com/timelinez/timelinez.github.io/commit/795e544a50a618dad7288a3f3120a03fb680ebbe - to present a vertical timeline for JFK's presidency.

Obsolelted in favor of https://github.com/timelinez/jfk which uses TimelineJS3 instead of the home-grown (and incomplete) technology.