Cleanup & make other modules use the right username right after creation

I noticed that the paths generated by pathauto still use the wrong username, even though pathauto’s hook_user comes after webserverauth’s hook_user because pathauto’s weight is bigger. However, webserverauth only changes the values in $account whereas pathauto uses the values from $edit to create aliases. This patch copies the new values over to $edit so that they are available to other modules in the same hook run as well.

It also removes some trailing whitespace