Create cookie name hash option — at Initial Version
|Reported by:||wpmuguru||Owned by:|
I put this on future release but we should do it early in 3.1. Currently, by default,
an upgraded MU install has an empty string as a cookie name hash
a single WP site uses the siteurl option as the seed for a MD5 hash
a WP -> WP 3.0 network uses the main site's siteurl option + '/' as the seed for a MD5 hash
We should move these to a common more appropriately name option/site option and give the super admin(s) the ability to change it and/or generate a new one.