[PEPr] Comment on HTTP::HTTP_Request2_Hawk

Hi Bertrand, Unfortunately, your Observer will not work with HTTP_Request2's Curl adapter at all: it does not send 'connect' event you rely upon. Socket adapter tries to use keep-alive feature of HTTP protocol so it may reuse an existing connection and not send a 'connect' event either. That being said, it may make sense to add a new event sent to observers before any communication to remote server, making it possible for observers to modify the request. -- http://pear.php.net/pepr/pepr-proposal-show.php?id=701