Add section to register new headers to IANA

[mitar]

We are adding new HTTP headers for checking capabilities. We have to register them with IANA like this.

[mitar]

@brynbellomy I assigned this issue to you. Care to do it?

[brynbellomy]

@mitar @toomim I'm happy to handle registration, but I want to make sure we all agree on those headers first. Michael?

[toomim]

Headers:

Version
Parents
Subscribe
Merge-Type

Then within the multi-response to GET, there's a Content-Length: N header, but that's not exactly an http header.

And in range-page, I'm not sure which of those are new headers and which are existing headers:

Range-Request-Method
Range-Request-Units
Range-Request-Allow-Methods
Range-Request-Allow-Units

[mitar]

And in range-page, I'm not sure which of those are new headers and which are existing headers

You mean in range-patch spec. They are all new headers I think.

I made this issue for range-patch, but you are right, we have to add this to http-braid as well.

[brynbellomy]

@toomim They're all new