Summary:
You are already using `final class` as the default swift declaration as I guess most people agree this is best practice for classes you are not planning to inherit from :) So I just made the example code more consistent.
I will not add much more reasoning to why, other than open source projects like this is a _big_ inspirations and starting ground to play with swift for new develoeprs joining the iOS community. Nuding them to ask the right questions (composition vs inheritance) early could only be a good thing (?)
- [X] All tests pass. Demo project builds and runs.
- [X] No new tests. No new classes.
- [X] No breaking changes.
- [X] I have reviewed the [contributing guide](https://github.com/Instagram/IGListKit/blob/master/.github/CONTRIBUTING.md)
Closes https://github.com/Instagram/IGListKit/pull/539
Differential Revision: D4696591
Pulled By: rnystrom
fbshipit-source-id: 73539b907452ec0cb7a8e842a95cb4fd27138f2f
Summary:
Fix crash in Examples-iOS app when tapping "Mixed Data"
Make GridItem conform to IGListDiffable now that NSObject+IGListDiffable category has been removed.
- [x] All tests pass. Demo project builds and runs.
- [ ] I added tests, an experiment, or detailed why my change isn't tested.
- [x] I have reviewed the [contributing guide](https://github.com/Instagram/IGListKit/blob/master/.github/CONTRIBUTING.md)
Closes https://github.com/Instagram/IGListKit/pull/251
Differential Revision: D4224337
Pulled By: jessesquires
fbshipit-source-id: 16a437c4e5e45185481b4262ea7770f4a8559618
