Add RunKeeper to list of sites
Clean up sites.json
Update the contributing notes for future clean up.
Missed an entry to sort.
Added mojang.com
Added okcupid.com
Added Ubuntu One entry
Added OpenDNS
Added waze.com
Added redditgifts.com
Added pingdom.com
Added Zattoo
Merge branch 'master' of https://github.com/goldenmeanie/justdelete.me into goldenmeanie-master
Merge branch 'master' of https://github.com/urda/justdelete.me into urda-master
Merge branch 'patch-1' of https://github.com/marvinrabe/justdelete.me into marvinrabe-patch-1