v3.0.0-beta.4

• Revisited encoding/decoding implementation: we start to only encode characters in the cookie name and value that are strictly necessary (";" and "=" in the cookie name, and ";" in the cookie value; using percent-encoding). The stricter implementation so far was based on the requirements for server implementations in the RFC 6265 spec (section 4), but for user agents more liberal rules apply (section 5.2) - #595, #590