Add support for Authy indication
Add Authy to existing sites that support it
Add Twitter to social section
Add CloudFlare to domains section
Add Coinbase to bitcoin section
Added icons for Twitter, Cloudflare, and Coinbase
Merge pull request #5 from zach-taylor/master

Add Twitter, CloudFlare, Coinbase. Add support for Authy
Fix colspan, tidy up HTML
Remove whitespace in data file
Add Amazon Payments info to yaml
Add Stripe, alphabetize a few sections

Also shortened Social Media to Social. It was ridiculously long.
Fix non-Twitter, no-2fa table
Add Heroku info to list
Add Zappos and Etsy info