v0.3.0

• Properly match cookie domains to hostnames, so that e.g. cookies with a domain of ".example.com" will match URLs with hostname "example.com" or "www.example.com". Previously cookies with domains starting with a "." wouldn't match any hostname.
• Update kooky dependency to support modern browser versions.
• Use new kooky cookie store finding functionality to find cooky stores. This should make things work on non-MacOS platforms.
• Support chromium.
• Accept a second argument giving a cookie name. When a cookie name is given, the best matching cookie is selected and only its value is printed.