Added gitignore and slight async operations improvement.
Added gitignore and slight async operations improvement.

javiercordero/dualPrint,javiercordero/dualPrint,javiercordero/dualPrint,javiercordero/dualPrint,javiercordero/dualPrint,javiercordero/dualPrint,javiercordero/dualPrint,javiercordero/dualPrint