Added module Event_type.
Added safe verof evas_object_smart_callback_add.
Tested Evas.Event_type.u.
Simplified Evas.Event_type.t.
Corrected a typo.
Added example fileselector_example.
Merge branch 'safe_event'
Tested Event.Type.create.
Done some factorization.
Added documentation.
Added events of Elm_win.
Added events of Elm_button.
Added events of Elm_entry.
Added events of Elm_check.
Added events of Elm_radio.
Added events of Elm_image.
Added events of Elm_icon.
Added events of Elm_notify.
Added events of Elm_layout.
Added events of Elm_fileselector.