Password policy constraints now use submitted user account rather than database to check for password compliance

The Password policy module formerly used the submitted user account to check for password policies. If a constraint needs to check against a changed value rather than the database, this was not possible.

The API change is described as follows -

// New style
function ...($constraint, $account) {

Instead of -

// Old style
function ...($pass, $constraint, $uid) {

See https://drupal.org/node/1226434#comment-4770120 for more information.