removed unnecessary bak-files

Completly same functionality as VHost-Subdomain, not to disable if already existing vhostalias-somains in system.

- Added fields to client, reseller and website to show when a record was added and by which user

- Display server name in all web domains select fields so that you know which domain from which server you select.

http://www.howtoforge.com/forums/showthread.php?t=62691

  New global option to grant reseller users access to the options (advanced) tab in web domains and vhost subdomains

- need to have the pecl idn and intl modules installed
  or
- have the idna_convert class in the classes/idn/ path

If you change an auto subdomain of an alias/web-domain there has to be checked if a subdomain with www. or *. has been created already.

Implemented: FS#2427 - Allow wildcard subdomain creation on limit_wildcard = y 

Bugfix on db-Class (datalog Update)

- Fixed missing templates and language entries
- Previous subdomain mode can be used concurrently
- Changed log path to a more convenient location

Fixed (partly) FS#2310 - Template switch not working in mailuser module, for dashlets and the login page