Thank you very much for pointing the issue out, you're right, those special characters should not be used unless quoted as cookie values and can't be used at all as cookie names.
We'll correct this issue with our next release, in the meanwhile send me a PM if you need the updated library sooner.


PS: note that RFC 2109 was substituted by RFC 2965 and that 2068 was substituted by 2616, btw the quoted parts were not changed.