7042979: Rename StandardSocketOption and StandardWatchEventKind

[Alan Bateman]

Rémi Forax wrote:
>
> Hi Alan,
> It's ok for me.
>
> I see that you have changed the context's type of 
> StandardWatcheventKinds.OVERFLOW
> from Void to Object to allow implementation specific context. Am I 
> right ?
Ah yes, I should have  mentioned that one. It might be useful for the 
OVERFLOW event to carry some context so it would be better if the type 
parameter weren't Void.

-Alan