* - add focus functionality for devices without touch screen
(faced problem while developing for android TV, cause there only remote controller for device)
* Reimplement as a ref method.
* - remove redundant requestFocus
Rewrote the whole repository into typescript. This will provide way better and up to date documentation. This should also add some safety for people contributing 😄 .
Flow types were not working until now which is why this PR doesn't have them but feel free to PR.
This also fixes#384#435#206#171#168.