Added better dovecot version detection in Debian and Ubuntu installer.

Till Brehm

2014-10-18 1fc360dfaf61613735cb635c8e905af2b089cf68

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';