* casts: remove internal "Item" and use "Elm_XXXX_Item" for carousel,
list, genlist and toolbar.
* warning: fix const on lots of getter apis, the object should be
const, and not the return! Of course lists that are returned and
are not supposed to be modified are still returned as const, but
maybe we should return iterators!
* list/genlist: fix selected_set() to be a bit (marginally)
faster. Do not operate if state has not changed and if it did
changed we're sure we're not in the object->selected list.
SVN revision: 39208
add tests for these
add tests for inheriting scaling factor from parent
fix test app to use list now instead of box+buttons (cleaner)
SVN revision: 38909