FIX: ItemListbox::findSelectedItem stored wrong index for 'next' search.
FIX: ItemListbox::findSelectedItem stored wrong index for 'next' search.

--HG--
branch : v0-7

cbeck88/cegui-mirror-two,cbeck88/cegui-mirror-two,cbeck88/cegui-mirror-two,cbeck88/cegui-mirror-two,cbeck88/cegui-mirror-two