[FIX]wiki: target in another window only if the img link is external (beginning with xx:// or www.xxx
[FIX]wiki: target in another window only if the img link is external (beginning with xx:// or www.xxx


git-svn-id: 79db53bec14f0ce9f7a86eb71e89624f126ad069@10997 b456876b-0849-0410-b77d-98878d47e9d5

oregional/tiki,oregional/tiki,changi67/tiki,tikiorg/tiki,changi67/tiki,tikiorg/tiki,oregional/tiki,changi67/tiki,oregional/tiki,tikiorg/tiki,changi67/tiki,tikiorg/tiki,changi67/tiki