Added new column to torrenttable (time, torrent was added)

!!!!!!!!!!!!!!!!!! IMPORTANT !!!!!!!!!!!!!!!!!!!!
!!!                                           !!!
!!! UPDATE                                    !!!
!!!  -rtorrent to 0.9.2                       !!!
!!!   --> need some changes in rtorrent.rc    !!!
!!!  -libtorrent to 0.13.2                    !!!
!!!                                           !!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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)

support/rtorrent.rc:
 -umask-command changed
  -"removed" unknown commands