some docker.io -. docker.com conversions

I'm going to wish I didn't do this

Docker-DCO-1.1-Signed-off-by: SvenDowideit <SvenDowideit@home.org.au> (github: SvenDowideit)
Is this still the correct email address we should be putting here?  (ie, is "docker@docker.com" really the proper replacement for "docker@dotcloud.com"?)  or is there a newer email address that would be better?