The list of supported HTTP methods is available in JS land now so there
is no longer any need to pass a stringified version of the method to the
parser callback, it can look up the method name for itself.

Saves a call to v8::Eternal::Get() in the common case and a costly
v8::String::NewFromOneByte() in the uncommon case.

Use array indices rather than named properties to store callbacks on
the HTTPParser object.  Speeds up the http benchmarks by a few percent.

Conflicts:
	Makefile
	configure
	src/node_version.h

- Save StringPtr if the header hasn't been completely received yet after one
  packet.
- Add one to num_fields and num_values. They were actually one less than the
  number of fields and values.
- Remove always_inline makes debugging difficult, and has negligible
  performance benefits.

Changes:

  * 'http://github.com' => 'https://github.com'
  * 'https://github.com/ry/node' => 'https://github.com/joyent/node'
  * 'https://github.com/ry/http-parser' =>
    'https://github.com/joyent/http-parser'
  * old issue links
  * wiki link

Speeds up HTTP benchmarks by 10% on average.

Problem was introduced in last http-parser upgrade which fixed a long
standing bug with the upgrade event and removed several callbacks.