Added a global default for the .htaccess allow_override setting.

Fixed: Missing server.ini config entries for vlogger and jailkit
Added: Admin interface server_config for vlogger and cron

Added: interface module web traffic statistics
Fixed: mail_traffic is now reported to master server instead of local
Fixed: GRANTs for slave server database user on master database

- changed GRANTs for slave servers on multiserver setups
- added option for clients to change path of ftp users (inside webroot)
- extended software packaging system (return status of install)
- added 2 plugins for automatically create symlinks webmail and phpmyadmin on each website (not enabled by default)

quick workaround for bug: server_id gets "0" when saving again because the input field gets disabled and no value is returned.

Changed database prefix to client ID instead of client name to better use the limited username length of mysql.

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