Svn auth (through master.php.net)

change the authentication to use the master.php.net instead of the local passwords

the user/pass on account-request page will be mandatory. it is a must if we want to auth from there. the documentation and in most cases the sourcecode goes into svn anyway, so it's not a big change.

drop/empty the password field in the local database

check if there are pecl users without svn account, because they won't be able to login without creating an svn account first.