[whatwg] Installed Apps

[Michael Kozakewich]

Minimizing to the notification area is about the only thing, I think, that 
we can't already do in a modern browser. If the page persists, it must be 
visible (maybe with a user option to make it completely invisible). This 
way, the user could at any time click the weblication and choose the 'close' 
option.

I'm not sure about the use of making it start automatically on computer 
restart, unless it was meant that the state of the application would be 
saved on the computer? It could use an offline-storage solution, and then 
close itself.