Merged revisions 3049-3051,3053-3054,3058,3070,3074-3077,3082,3086-3088,3091-3092,3094-3095 from stable branch.

Fixed: FS#2109 - Email address validation via API method(s) is inadequate (and results in false-negatives)

- Improved datalog functions.

Extended datalogUpdate and datalogInsert function in mysql library so that insert_data and update_data arguments can be passed as array too.

php 5.4 fixes + bugfix interface/web/admin/list/remote_user.list.php ['table_idx'] from userid to remote_userid

join fix - disappered in commit + Switch traffic joins, because its faster - Tested in a productive system (MySQL 5.1) as query few tausend domains 1-3 sec for Webtraffic sort, faster SQL = faster and MySQL 5.5 is much faster with joins (standard is not sorted with slow traffic querys) -> slowest part is coping the tables into temp -> more tweeks on cache... -> faster by heavy use

fixed sorting from traffic, changed sessionvaribale because listDef[name] is by mail and web the same but different columes. Additional added table aliases in 'order by' by joins. Added table by log because server_id^C join server_id = sql error

Sort and limit in ispconfig all templates... additional info howtoforge - http://www.howtoforge.com/forums/showthread.php?p=274790

- 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.

Added dns_zone_get_id function get id from domain name. To discover a domain id passing domain name as argument.

use the standardize app->db->quote method already established.

Refs: 1722

Also removed the calls to the db closeConn calls in favor of
destryong the connections on the class __destruct() 's..

Since firebird db had a closeConn as well, changed its __destruct
to calls its own personal closeConn which otherwise left unmodified.

Refs: 1722

- Fixed UTF-8 support in email function.

  @param  -> session_id
  @return -> Array of all Client IDs on server

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