Document the format of the "domain" attribute
Document the format of the "domain" attribute

Provide more information regarding on how the "domain" attribute works
according to the RFC 6265 and the actual behavior of major browsers.

Closes gh-87. Closes gh-91. Related to gh-81.
stevewithington/js-cookie,gpluta/js-cookie,jafartke/js-cookie,jafartke/js-cookie,gregzx/js-cookie,js-cookie/js-cookie,gpluta/js-cookie,gpluta/js-cookie,gregzx/js-cookie,stevewithington/js-cookie,stevewithington/js-cookie,carhartl/js-cookie,gregzx/js-cookie,carhartl/js-cookie,js-cookie/js-cookie,jafartke/js-cookie