fog/fog — pull request #1646 by althras (2013-03-09 15:49:09+00:00)
Title: Changed GoogleAccessKeyId to GoogleAccessId

I struggled with this for four hours today. Finally found this:
https://groups.google.com/forum/?fromgroups=#!topic/gs-discussion/iahTA7C2nmE

which led me to this:
https://developers.google.com/storage/docs/accesscontrol#Signed-URLs

Tested that it works, but don't want to do gsubs for this in every URL generated by Carrierwave + fog in my app.