Merge pull request #2273 from ProjectMirador/reselect-annos

__tests__/src/components/OpenSeadragonViewer.test.js

__tests__/src/components/WindowViewer.test.js

__tests__/src/selectors/index.test.js

src/components/OpenSeadragonViewer.js

src/components/WindowCanvasNavigationControls.js

src/components/WindowViewer.js

src/containers/AnnotationSettings.js

src/containers/OpenSeadragonViewer.js

src/containers/ViewerNavigation.js

src/containers/WindowSideBarAnnotationsPanel.js

src/containers/WindowSideBarButtons.js

src/containers/WindowViewer.js

src/state/selectors/index.js