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

FS#1993 - Creating Subdomains as VirtualHost

Addes some missing translations

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

- Added "Generate Password" links to forms of the sites module.

- Fastcgi: delete .php-fcgi-starter directory if another PHP mode is used.

- Added "actions" framework in server to replace the functions provided by the core modules
- Moved system update function from remoteactins core module to software update plugin.