Replace manually constructed keys with factory keys

[levithomason]

We currently have several components that build up a key, finalKey, etc. All factories now support generating keys from string and number shorthand. If a user passes an object or an element, they must define their own key.

We need to remove all manual build up of keys and leave this to factories and users only.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed in 30 days if no further activity occurs. Thank you for your contributions.

[levithomason]

See #2424