Test to preview and share Steve Jobs by waiter lsaacson to friends within iOS apps
#Using UIDocumentInteractionController ###1. Preview
- (BOOL)presentPreviewAnimated:(BOOL)animated;
###2. Third-party apps
- (BOOL)presentOpenInMenuFromRect:(CGRect)rect inView:(UIView *)view animated:(BOOL)animated;
###3. Third-party apps as well as actions
- (BOOL)presentOptionsMenuFromRect:(CGRect)rect inView:(UIView *)view animated:(BOOL)animated;
#Using UIActivityViewController
###1. Display UIActivityViewController with AirDrop hidden
###2. Display custom UIActivity
