Merge Release/0.12.0 branch into dev

[IodaMikeMapbox]

Checks:

• [x] Update changelog
• [ ] Rebase to dev branch
• [x] Assign reviewers

Linked issues: mapbox/mapbox-vision#2314

[IodaMikeMapbox]

Need to update the dependency on vision in the Cartfile to be 0.12.0, till then added DO NOT MERGE label