Support for HTTP PATCH Verb!

[almost]

It's an actual RFC now, can we have Node.JS support for it please!

http://tools.ietf.org/html/rfc5789

[koichik]

Can you sign the CLA?

[ThisIsMissEm]

LGTM, can we have a test for it?

[almost]

I've signed the CLA (electronic version, my full name is "Thomas Parslow"). I've added a test as well, just checking that the method name gets passed through, hope that's ok!

[koichik]

@almost - I squashed into a single commit, thanks!

[felixge]

@koichik How come this patch be done in node and not in the parser repo first?

https://github.com/joyent/http-parser

[koichik]

@felixge - It is src/node_http_parser.cc, not deps/http-parser/http-parser.c :)
http-parser has already supported PATCH method (nodejs/http-parser@eee6012).

[felixge]

@koichik ohhh, my bad. I should have read the file name, duh : ). LGTM