Merge pull request #41 from stanzheng/gh-pages

adding sponsors
Update index.html

added bottom line for esthetic reasons
Update index.html
Update index.html
Update index.html
Add Esri & MS sponsors
Add esri and MS sponsors
Add esri and MS sponsors
Add esri and MS sponsors
Update index.html

Update Transportation Challenge content.
Add brigade member Michael Carter
resized images to 400x300 max size, convert format to jpg.
shrink logos, inline-block logos.
unresize tcc and de logos.
Merge pull request #42 from kiliman/patch-1

Add brigade member Michael Carter
Merge pull request #43 from wbprice/gh-pages

shrink images of projects, sponsors.
added tcc.png
Merge pull request #44 from wbprice/gh-pages

added tcc.png
Update main.css
Update main.css