Merge branch 'release/2.1.0.3' into develop

* release/2.1.0.3:
  version bump
Gemfile update, allow larger image sizes per upcoming Day One release
version bump
Merge branch 'release/2.1.0.4'

* release/2.1.0.4:
  version bump
  Gemfile update, allow larger image sizes per upcoming Day One release