Summary:
Naviframe: modify elm_naviframe_item_pop_to api's document guide more specific to avoid confusion.
the elm_naviframe_item_pop_to api does not pop all items from the top to the target item.
It destory the items between the top and the target item, after that pop and destory the top item.
so, the descriptions of elm_naviframe_item_pop_to() is modified to avoid cunfusion like above.
Reviewers: Hermet, woohyun, seoz
Subscribers: seoz
Differential Revision: https://phab.enlightenment.org/D1780
This change is not simple because Elementary has not been built from the
first day to work with Eo. Code had to be adapted to fit the new design.
The del_pre that have not been replaced yet can return FALSE and
prevent deletion. For these classes, code modification has to be deeper
and will be done later.