Stats page - update 2

* Added second chart; to see transitions, switch between USA and UK
* Added right-hand side pane, privacy strings are currently missing
* Made country picker box fixed width, will likely need to clean up
appearance to make it less awkward

Still using dummy data for all. We may want to make the darker "choice"
colors slightly brighter.
Added missing comma
Merge pull request #15 from almossawi/master

Stats page - update 2