Added previous sponsors
Grid looks much more square
Reduced image size
minified
Added all the sponsors
Added all the links
Added rebull
Added more sponsors
Added more sponsors
Updated sponsorship page
updated image link
Added photo stream link
Updated masthead with mailing list link
Added mailing list link
Merge branch 'master' of https://github.com/pennapps/pennapps.github.com

Conflicts:
	templates/_masthead.html
Merge branch 'master' of https://github.com/pennapps/pennapps.github.com
changing mailing list format
linkify hackathon
Added blog link
Merge branch 'master' of github.com:pennapps/pennapps.github.com