uc_eco doesnt preserve attribute weights, breaks other implementations of hook_product_description_alter.

So I have the "remove empty attributes" disabled, however looking at the code, uc_eco still reconstructs the entire attributes description array.

uc_eco_product_description_alter should not modify the description array at all if "uc_eco_main_cart_remove_empty_attributes" is not set, and if it is set it should *not* simply call _uc_cart_product_get_options and blow away whatever was in the description array, as there may be other modules with implementations of hook_product_description_alter that alter that descriptions array first. The call to _uc_cart_product_get_options does *not* return the descriptions with their weights, so its not a great way to get the options in any case.