jQuery 1.10.2 --> 1.8.3 for lightbox ext.

The lightbox extension didn't work w/ 1.10.2. Changing back to 1.8.3
brought it back to life.
youtube ext: removed some dumps
LTO offer ended add to cart button hidden

If an item makes it into the LTO section and the offer has expired the
"get this item" button will hide.