Ability to delete photos

[azonov]

No description provided.

[bcapps]

I will totally defer to my NYT friends as to what to do here, but I will say that the original intent for data changes was to expose the dataSource property and allow clients to create their own data source and add/remove photos to it as needed.

[azonov]

Yes, but this way, It could make external dependencies (ex. title should be updated with new data) and it is not clear that datasource should implement protocol NYTPhotosViewControllerDataSource. I just do it for myself and share example with community. Thank you for the quick feedback :-).

[cdzombak]

Thank you for the pull request, @azonov. After some internal discussion, though, we're confident we want to handle this capability through a more Cocoa-like data source API; and I've opened #163 to track discussion around that.