Updated documentation on timeouts

[zanker]

@ixti the docs on timeout aren't quite right (namely they need the type of timeout). Celluloid::IO works again, since the respond_to? :sync_close= change was made. Although @tarcieri should tag a new celluloid-io that has that fix in!

[ixti]

namely they need the type of timeout

That's my defect :D It was supposed to be :per_operation if not specified - but I have mistyped it ;))

[sferik]

👍

[ixti]

Just FYI. I have fixed that defect (and covered with specs - why I didn't wrote them before - have no clue). And updated README section about that ;))