ricobeck/KFEpubKit — pull request #10 by pirkka (2014-09-02 10:53:50+00:00)
Title: letting delegate know if there are errors opening the book

If the rootFileForBaseURL fails and returns a nil, the KFEpubKit logs a message but is silent to the delegate.

I added calling delegate's didFailWithError to two cases where something has gone wrong.