Write queue after connect windows

@txdv 
> We issued the connection request first and now you want to execute the writes before the connection request?

What I understood from @piscisaureus was that he believed the writes should occur just before the `uv_connect_cb` runs (hopefully he wouldn't mind jumping in and giving some feedback ;-). 

@saghul 
> I'd say writes always come *after*connect.

Do you mean _after_ the `uv_connect_cb` has run, or just after the connection has been made?