FS#3900 - Invalid home dir for shell users. Changed description from -Dir- to -Base Dir- to refelect that /home/username is appaneded to this directory.

- Made sure SQL backups from servers that differ from the server where the website is on can be restored. A download of the backup is not possible in such a case, therefore I hide the "Download" button.

FS#3632 - Adding websites with remote API is broken in 3.0.5.4p3 release.
Missed to commit one file for: FS#3634 - Add option to disable statistics for a website

- Merged language files

- Added warning in the interface when a path for a shelluser is set that is outside of the website docroot.
- Added security settings feature to allow the root user of a server to control most aspects of whet the admin user of the controlpanel is allowed to do in system settings. This is especially useful for managed severs where the ispconfig admin user and the root user of the server are different persons.

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

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

- Added missing option in centos dovecot.conf file

- changed/harmonized order of clients in client select fields ("ORDER BY client.company_name, client.contact_name, sys_group.name")

- Updated version number to 3.0.5.4rc1