this also fixes a problem with ignored vhost subdomains on validation

- Changed vhost.conf.master as php-fpm was not working after commit "5a6670bd".

Fixed: db user not created in mysql user table if password is stored in cleartext (ISPConfig < 3.0.3.3)
Fixed: db user not created on update if status not changed (e. g. on using resync tool)

- adjusted PHP settings regex to allow |, (, and ) (like in "error_reporting = E_ALL & ~(E_NOTICE | E_DEPRECATED | E_STRICT)")

- Added autoinstall for centos, opensuse and gentoo
- Added ini style config autoinstall option
- Autoinstall sample configuration files are now in docs folder
- Removed old autoupdate file

Fixed: reseller has_clients if limit_client is != 0, e.g. -1 or > 0. Thanks to Sergio for pointing out this issue.

- autoselect password if you use "Generate Password" function (saves a click if you want to copy the password).