Merge remote-tracking branch 'http2-spec/master'
Added ascii art for the WINDOW_UPDATE frame.
Merge remote-tracking branch 'http2-spec/master'
Client settings during Upgrade-based negotiation

#51:Client advertising settings during Upgrade dance
https://github.com/http2/http2-spec/issues/51
address some comments on this pull

IANA section. Short blurb on why this header exists, and clarifying that
an empty header is fine.
update README
Merge remote-tracking branch 'http2-spec/master'
make links more obvious
move information about the draft format down
remove redundant para
Add section reference to SETTINGS_INITIAL_WINDOW_SIZE.
Indicated the SETTINGS that must be communicated
Merge pull request #148 from jpinner/flow_control

Add section reference to SETTINGS_INITIAL_WINDOW_SIZE.
Crediting editorial contributions.
Merge branch 'master' of github.com:http2/http2-spec
Merge pull request #143 from jpinner/ascii_art

Added ascii art for the WINDOW_UPDATE frame.
Addressing frame size limitations.  Closes #6.
Merge branch 'master' of github.com:http2/http2-spec
Fixing a minor inconsistency.
Clarifying what is reserved in WINDOW_UPDATE.