Checklist for Ember 1.13+ (Glimmer) Support and usurping ember-list-view

I am creating this as per the discussions that are found on this thread: https://github.com/emberjs/list-view/issues/245#issuecomment-131170337 if anyone wants me to add anything to the checklist just comment and I will do my best to keep up with what needs to be done.
### Documentation:
- [x] update list-view documentation to point to ember-collection
- [ ] update readme to reflect the reason for the new change
- [ ] document new features in the new implementation i.e. cell-layout
- [ ] document the upgrade path for people using ember-list-view
### Implementation:
- [ ] upgrade tests and make sure they are all passing
- [ ] ???
### Release:
- [ ] Release first beta version so people can test the current implementation
- [x] decide if we are releasing a 1.13 release version in line with the new "same version" policy in ember