Raw request handling

[cjstehno]

It might be useful to add a means of writing a matcher directly against a request, something like:

server.expectations {
    match( matcher ).responds().body('ok', TEXT_PLAIN)
}

where matcher would be a hamcrest matcher given the ClientRequest object to match against. This would allow another level of flexibility in match configuration.

Note: that the match method would be generic to handle whatever the matcher matches, including the request method.

[cjstehno]

While an interesting idea, this is not really needed and would require a major change of the expectation definition architecture. Killing this for now.