Summary:
Naviframe provides deferred push/pop signals to begin transition effect and
not to emit signals frequently for transition callbacks.
To handle the deferred naviframe push/pop signals, programs which catch the
signals are added.
@fix
Test Plan: Test naviframe in elementary_test by pressing next and prev buttons.
Reviewers: zmike, Hermet
Reviewed By: zmike
Subscribers: cedric, #reviewers, #committers
Tags: #efl
Differential Revision: https://phab.enlightenment.org/D6823