Rewriting structure section.  For #331.
Connection error definition.  For #331.
Unarranging.  For #331.
GOAWAY on stream X is bad.  For #331.
Fixing END_STREAM description for the end of the request. For #331.
Contiguous...  For #331.
:authority is not mandatory. For #331.
Starts with a colon.  Closes #331.