Fixing GOAWAY note
END_SEGMENT tweaking
chmod -x
Fixed a typo.
update ALPN reference
Merge pull request #554 from frankzinger/master

Fixed a typo in section 5.3.1 (Stream Dependencies)
Forbidding the use of pseudo-header fields

Tightening the language around the definition of malformed requests
and responses to support this.
Adding a note about pseudo-headers outside of initial header blocks
Refining the registries sentence.
Removing END_SEGMENT and mid-stream HEADERS
Lawyerin' the text to remove a contradiction
Expanding frame length to 24-bits, with setting for protection
Correcting size error
Typo correction
Typo correction
Pseudo-header field refactoring
Merge branch 'master' of https://github.com/http2/http2-spec
Clarifications on frame size.

Make clear that the intent for SETTINGS_MAX_FRAME_SIZE is that
2^14 <= value <= 2^24 - 1.
Grammer tweeks
Acknowledgement of unsupported settings