await dot syntax

[AlexeyBukin]

Some asynchronous code looks bad when you use a lot of objects and properties.

var v = (await future1((await future2).property2)).property1;

I would like to see (await someFuture()).property as someFuture().awaited.property then code above could be rewritten as

var v = future1(future2.awaited.property2).awaited.property1;

We could use await Instead of awaited to highlight it more for readability.
What do you think?

[lrhn]

See also #25.

[AlexeyBukin]

@lrhn thanks, closing