Merge pull request #2855 from ProjectMirador/layers

__tests__/fixtures/version-2/hamilton.json

__tests__/integration/mirador/layers.html

__tests__/src/actions/layers.test.js

__tests__/src/components/CanvasLayers.test.js

__tests__/src/components/CompanionWindowFactory.test.js

__tests__/src/components/LayersPanel.test.js

__tests__/src/components/OpenSeadragonViewer.test.js

__tests__/src/components/WindowSideBarButtons.test.js

__tests__/src/lib/CanvasWorld.test.js

__tests__/src/lib/ManifestoCanvas.test.js

__tests__/src/reducers/layers.test.js

__tests__/src/selectors/layers.test.js

bundlewatch.config.json

package.json

src/components/CanvasLayers.js

src/components/CanvasThumbnail.js

src/components/CompanionWindowFactory.js

src/components/LayersPanel.js

src/components/OpenSeadragonViewer.js

src/components/WindowSideBarButtons.js