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

removed Forname and lastanme from sys_users list, added active and client_id -> grate to get relatons if you wanna deactivate a user

- Improved support for multiple PHP versions. Additional PHP versions have now their own form and database table.

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.

Splitted the remote function permission array for the remote user form into separate config files. The new remote.conf.php files are located in the lib folder of the modules.

- Fix: IPv6 address must not be '*'.

- Added SNI config field in sysetm > server config > web.

- Enabled Security Level (Server Config > Web > Security Level) for nginx.

- Fixed a bug in server settings rescue page.

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- Removed ufw firewall tab.