Allows user to map all inputs seamlessly without having to
click on each button.
Also increased button timeout to 5 seconds from 1.5 due to pita.
Motion controls are not included since they will be special cases.
It substantially complicates the code and doesn't really provide any
functionality. According to the forums, the Android app is out of date
and has been broken for quite a while.
If we want to add this back, I'd write an app that speaks a more native
Wiimote protocol, and we can hook that up to the backend quite easily.
It could even be over our NetPlay protocol!
