Merge pull request #1 from alexisylchan/master

Add co2 emissions visualization
Merge pull request #2 from alexisylchan/master

Update co2emissions title
Merge pull request #3 from alexisylchan/master

Add initial charts to co2emissions
Merge pull request #4 from alexisylchan/master

Change zoom level of co2emissions
Merge pull request #5 from alexisylchan/master

Add description of data
Merge pull request #6 from alexisylchan/master

Add co2 emissions page in list of pages
Added test for Boston Car Data Explorer and a screenshot.
added link to 1920x1080 version of demo (dashboard style)
Version of demo with layout assuming 1920x1080. Allows interaction with full page without scrolling.
Substituted screenshot of "dashboard" version of the demo

The Boston Car Data Explorer demo now has a small link next to the year
selector called “1920x1080”. If you click this, it launches the demo in
a new 1920x1080 browser window, and uses a “dashboard”-like version of
the demo which all fits on one page. This makes for a better screenshot.
Touched up text for Car Data Explorer
Fixed minor link and grammatical issues.
More minor fixes.
Resized impact image to improve load speed on front page.
Further shrinking of figure for thumbnail.
Removed forced width on impact thumb.
Added missing line break after car data screenshot.
Added bios, screenshots, head shots.
Updated links, updated image, fixed header text.
Added old schema for use in wikis.