Set-Cookie: line was ignored if they didn't end with a trailing
semicolon. This is indeed wrong syntax, but there are high-profile web sites
out there sending cookies like that so we must make a best-effort to parse
them.

cookie list, even though they're not supposed to do that...

already existing cookie with a new one.

properly match those cookies in subsequent requests

trying to address it!

to read multiple cookie files, no longer writes to the URL string passed
to the _add() function. The new stuff is now conditionally compiled on the
COOKIE define. Changed the _init() proto.

* I hope I finally removed 'empty cookies' crash