[FIX]Usability fix of the icon, font size and content width for module since_last_visit_new in jquery mode, for theme styles with a little bit less width by default in side modules (including coalesce), while keeping similar readability like other modules.

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@49588 b456876b-0849-0410-b77d-98878d47e9d5
[FIX]Allow using 100% page width when in central column, since it can display many columns of desired information.

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@49589 b456876b-0849-0410-b77d-98878d47e9d5
[FIX]It's not trackers but trakcer items

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@49591 b456876b-0849-0410-b77d-98878d47e9d5