Changes

Previous work was done on adding [[OS X Keychain integration]] to Firefox. This work was focused on tightly binding C++ and Mac API calls. Since then more work has been done to [http://blog.mozilla.com/dolske/2007/05/28/followup-password-manager-changes-coming-in-ff3-alpha-5/ modularize the password manager] in Firefox. Various platform "keychains" need to be integrated with the new system. See bugs [https://bugzilla.mozilla.org/show_bug.cgi?id=309807 309807], [https://bugzilla.mozilla.org/show_bug.cgi?id=106400 106400], and [https://bugzilla.mozilla.org/show_bug.cgi?id=371000 371000].