ShareKit/ShareKit — pull request #613 by chion (2012-12-08 18:15:02+00:00)
Title: bugfix crach when use + (id)shareURL

https://github.com/ShareKit/ShareKit/issues/612

*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[NSPlaceholderString initWithString:]: nil argument'

cause in SHKiOSSharer - (void)shareWithServiceType:(NSString *)serviceType

[NSString stringWithString:(self.item.shareType == SHKShareTypeText ? item.text : item.title)])

item.title is nil, then crash.