Added new column to torrenttable (time torrent was added)

inc/defines/torrent.php:
 -define "ADDED" value --> must be 18 to match the order of rpc-request (list.fun.php)
inc/functions/list.fun.php:
 -add "d.timestamp.started"-Request to the multicall where torrent-infos are collected
index.php:
 -added table-header
 -added sortkey "added" and save in Session
 -save/get the timestamp
 -format added date (d.m.Y H:i)
 -give groupmode a bit structure
ajax/index.ajx.php:
 -format added date (d.m.Y H:i)
 -clear $l['added'] in group-totals
inc/cp/mycp/account.php:
 -added value "ADDED" to the sortkey-array
inc/functions/details.fun.php:
 -display the new info also in the torrent-detail-view

languages/Deutsch/base.lng.php / languages/English/base.lng.php:
 -added title

styles/newblue/style.php / styles/onelineblue/style.php:
 -restructure the table that the new column will be displayed
 -set the number of columns to 13 (+1)