get section levels right
clarify SNI use case a bit
update settings #
modify SNI use case
moar
tweak
remove 6555 ref
update xml
fix example in section 6.
disallow empty alt-svc now that we don't have priorities.
rewrap
Clarify Host header and SNI information for alternates.
IP -> IPv4
clarify the intent of caching
add TODO for flushing cache
update xml
Merge branch 'master' of ssh://github.com/mnot/I-D

Conflicts:
	httpbis-alt-svc/draft-nottingham-httpbis-alt-svc-02.xml
	httpbis-alt-svc/draft.md
Branch -03
update xml
bump revision in draft