FS#3574 - Improve corrupt maildir removal function

Till Brehm

2014-07-27 a6a997ee36ac59d0f079ac26da87412f5dfdef2c

1
ALTER TABLE `client` CHANGE `web_php_options` `web_php_options` VARCHAR( 255 ) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT 'no,fast-cgi,cgi,mod,suphp,php-fpm';