Fixed returning nil value on associated object and closes issue #15
Fixed returning nil value on associated object and closes issue #15

FolioReader/FolioReaderKit,kjantzer/FolioReaderKit,smartmobilefactory/FolioReaderKit,Julyyq/FolioReaderKit,FolioReader/FolioReaderKit,danfsd/FolioReaderKit,kjantzer/FolioReaderKit,kjantzer/FolioReaderKit,danfsd/FolioReaderKit,ShenghaiWang/FolioReaderKit,Julyyq/FolioReaderKit,taku33/FolioReaderPlus,smartmobilefactory/FolioReaderKit,danfsd/FolioReaderKit,ShenghaiWang/FolioReaderKit,Julyyq/FolioReaderKit,FolioReader/FolioReaderKit,taku33/FolioReaderPlus,smartmobilefactory/FolioReaderKit,taku33/FolioReaderPlus,ShenghaiWang/FolioReaderKit