- Attempted to fix a problem when Squid ignores all header fields it cannot
parse. Now we support a two-level scheme where raw header fields are
preserved regardless of our parsing/interpretation abilities. Each header
field has also a "cache" where we store parsed value of the field (if any).
- The only opearation on raw headers left is "joining" of appropriate headers
together.
- Fixed a lot of minor problems and added new header fields: Server, X-Cache,
and other.