If you try to create a new widget, you must be sure that the parent
is really an evas object.
With the previous implementation it was possible to call an _add
function for an elementary widget with any non-null pointer as parent
eventually causing crashes (like with the elm_box).
SVN revision: 55521
"Do you come from the land down under?
Where women glow and men plunder?
Can't you hear, can't you hear the thunder?
You better run, you better take cover."
- Men at Work
commit msg suggested by glima =D
%hua
SVN revision: 54407