postfixadmin-cli.php:
- __parse_params(): only check for first character if $params[$i]
  is not empty (avoids PHP warning)


git-svn-id: svn://svn.code.sf.net/p/postfixadmin/code@1660 a1433add-5e2c-0410-b055-b7f2511e0802
CliEdit.php:
- execute(): call __handle_params() also if empty args[0] is given
- __interactive(): only ask for id if $id_field is editable

This fixes two issues with a non-editable auto_increment id field


git-svn-id: svn://svn.code.sf.net/p/postfixadmin/code@1661 a1433add-5e2c-0410-b055-b7f2511e0802