phalcon/cphalcon — pull request #2481 by andreadelfino (2014-05-28 13:43:17+00:00)
Title: [1.3.2] Fix wrong issent() call on non Response objects

Can happens that `isSent()` method is called on non `ResponseInterface` compatible objects.
Another way to avoid this is to add `isSent()` method to `ResponseInterface`.