This is a hourly travis-ci () job that checks if there is a new version of atom available.
If there is a new version it uploads it to a bintray debian repository.
To setup the apt repository, run:
$ sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 99246077F3B16285
$ sudo apt-add-repository 'deb https://dl.bintray.com/joshua-anderson/atom wheezy main'
$ sudo apt-get update
$ sudo apt-get install atom