See also http://www.webupd8.org/2014/05/atom-text-editor-ubuntu-ppa-update.html and https://en.wikipedia.org/wiki/Atom_(text_editor)
See also http:// www.webupd8. org/2014/ 05/atom- text-editor- ubuntu- ppa-update. html and https:/ /en.wikipedia. org/wiki/ Atom_(text_ editor)