Override default userData according to app's name

atom/browser/lib/init.coffee

@@ -90,6 +90,9 @@ process.once 'BIND_DONE', ->
   else
     app.setDesktopName '#{app.getName()}.desktop'
 
+  # Set the user data path according to application's name.
+  app.setPath 'userData', path.join(app.getPath('appData'), app.getName())
+
   # Load the chrome extension support.
   require './chrome-extension.js'