Async push request's

[jfd]

It is sometimes useful to post a push request async. Think of it as a send and forget feature, very useful in unreliable logging services for example. This would speed up rendering times for the client because the PHP-server doesn't have to wait for a 200 Ok from hydna.

I found this article explaining how to use curl for this:
http://petewarden.typepad.com/searchbrowser/2008/06/how-to-post-an.html

The optional would be to make this an option, or maybe a separate method (e.g. push_async).

What do you think?