experimental support for heroku
Merge remote-tracking branch 'origin/master' into heroku-beta
trigger the build from the services worker
start solidifying all the stuff that'll go wrong
don't rely on gist scope since we don't care about output
don't use the weird block syntax
stub out auto-deployments
include a default branch in the repo payloads for pushes
Merge pull request #881 from github/heroku-beta

Experimental support for heroku