fixup
add FrameName()
add WindowUpdateLoop
add sending data in 4096 byte each
fixup
add stream state grahp to stream.go
add error returning at frame.go
add error returning at conn.go
add error returning to server.go & transport.go
use make in NilSettings
update MagicString to CONNECTION_PREFACE
update constants to uppercase
update frame header doc
update constants
fix typo
update flags
update stream doc
update frame docs
fix version