update sponsors link and contacts, fixes #11
remove duplicate frontmatter
add new proposals
remove identifying info
Chicago 2014: Enable registration
Merge branch 'master' of github.com:jedi4ever/devopsdays-webby
Merge branch 'master' of github.com:DevOpsDaysChicago/devopsdays-webby
Merge pull request #1127 from DevOpsDaysChicago/master

Chicago 2014: Add registration page and proposals