Catch InvalidArgumentException

[Alarmfifa]

Hello guys! I think it could be related with #15 Steps to reproduce this crash:

• launch a server (just server.php from example)
• send wrong header (without \r\n):

printf "GET / HTTP/1.0" | nc localhost 8000

At this moment wrench tries to check header: Method validateRequestHandshake uses getRequestHeaders and if there is no "\r\n" in $response it throws InvalidArgumentException:

       if ($eol === false) {
            throw new InvalidArgumentException('Invalid request line');
        }

The main problem is that nobody catches this exception! =(

There are a lot of methods to solve this problem:

• change exception class
• add catching somewhere else
• catch main exception class from user application (server.php for example)

If you have other opinion about this problem, just say =)

[Alarmfifa]

I've reverted this commit and made this pull request. I think, that it is more correctly, because I don't know all ideology in this project and could be wrong.

[dominics]

This looks good to me.

[Alarmfifa]

Thank you, Dominic! =)