Fixed:  FS#2066 - Check if problems can occur ins ervices when the default prefix is manually changed
 - Notes:
   once the entry was created or modified after applying this update the current prefix is stored with the entry and kept even if the global prefix changes

- Changed check if a domain is unique so that vhosts with identical domains/hostnames are allowed on different IPs and/or servers.

 - added isset() checks to password encryption mode in remoting
 - if additional parameter "_ispconfig_pw_crypted" is set to "1" the password fields are not re-encrypted, this is useful when importing data from existing user-bases where no cleartext passwords are stored.
   Attention: crypted passwords need to have the same format or they won't work (i.e. CRYPT for CRYPT fields, PASSWORD() for mySQL fields)

Fixed: FS#2533 - Backup not working with small values for wait_timeout and interactive_timeout in MySQL?

 - if no db prefix is set use php uniqid function to get a db username and db name

 - log parsing did not recognize lines with multiple recipients
 - spamfilter_users added to datalog status messages

 - entered all missing german and english entries for datalog status
 - excluded some more tables from status display
 - inserted the info-display code to the relevant templates

 - entered some more german language entries
 - excluded some (one for now) datalog dbtables from results

 - Show status messages to clients as long as the datalog is not processed (changes pending...)
 - missing:
   - template code in templates other than database list
   - language entries other than web_database, web_domain, web_database_user     

- APS installer:
  if database is created on different server than web the allowed remote ip for the database was set to the database server ip instead of the webserver ip
Updated:
- APS installer:
  the database should be created on localhost (the webserve) if it has database service enabled. fallback is the default database server of the client.

- Extended UNIQUE validator to allow empty values if "allowempty" option is set to "y".

Fixed: FS#2446 - APS Installer - Uninstall doesn't work