- Make sure ISPConfig shows the correct error message (instad of an SQL error) when a website is renamed after an alias domain that still exists.
- It should be possible to create two websites with the same domain on the same server as long as the IP differs. I therefore changed the serverdomain index of the web_domain table to include the IP address.

- fixed vhost template. website settings were overriding handlers of apache config files, e. g. roundcube

- removed [PT] flags as it is causing problems with some php applications due to information in SCRIPT_NAME and PHP_SELF

[Sun Jun 01 18:52:24 2014] [error] [client 146.52.61.243] (13)Permission denied: FastCGI: failed to connect to server "/var/www/clients/client1/web2/cgi-bin/php5-fcgi-1.2.3.4-80-example.de": connect() failed
[Sun Jun 01 18:52:24 2014] [error] [client 146.52.61.243] FastCGI: incomplete headers (0 bytes) received from server "/var/www/clients/client1/web2/cgi-bin/php5-fcgi-1.2.3.4-80-example.de"

- Fixed "no_domain_perm" error when trying to add proxy directives for subdomains or alias domains (nginx).

- backups: plugin checks mount point of wrong backup directory (e.g. /var/backup/web10 instead of /var/backup).

- Fixed: nginx placeholders could not be added to directive snippets textarea by clicking on the link.

Fixed regex in prefix validation under System > interface config that prevented numbers in prefixes.

Fix Update errors

I closed my last merge-request, as the request included all the upstream commits. I recreated my fork to get a clean environment.

Changes i've done are listed in commit f9d95c0c

* i don't have mailman installed, but update.php tried to configure it
* i also fixed the check for doveadm in suse & fedora lib, but it seems my centos dovecot does not have "doveadm mount" subcommand, so i think the doveadm error will still exist
* on centos the 'receive_override_options = no_address_mappings' was added to postfix main.cf which leads to not working e-mail aliases/forwards

Reconfigure Services? (yes,no) [yes]: /ispconfig/ispconfig3/tree/master/

Configuring Postfix postalias: fatal: open /var/lib/mailman/data/aliases: No such file or directory Configuring Mailman
PHP Warning: chgrp(): Unable to find gid for mailman in /usr/src/ispconfig3_install/install/dist/lib/fedora.lib.php on line 106 Configuring Jailkit
Configuring Dovecot
usage: doveadm [-Dv] [-f ] []

altmove [-u |-A] [-S ]
auth [-a ] [-x ] []
config [doveconf parameters]
director add|flush|map|remove|status
dump [-t ]
expunge [-u |-A] [-S ]
fetch [-u |-A] [-S ]
force-resync [-u |-A] [-S ]
help
import [-u |-A] [-S ]
kick [-a ] [-f] [|]
log find|reopen|test
mailbox create|delete|list|mutf7|rename|status|subscribe|unsubscribe
penalty [-a ] []
purge [-u |-A] [-S ]
pw [-l] [-p plaintext] [-r rounds] [-s scheme] [-u user] [-V]
reload
search [-u |-A] [-S ]
sis deduplicate|find
stop
user [-a ] [-x ] [...]
who [-a ] [-1] [] []
Configuring Spamassassin
Configuring Getmail
Configuring Database