Merge branch 'master' into 1782-embedded-integration-test

__tests__/integration/mirador/index.html

__tests__/src/components/App.test.js

__tests__/src/components/ThumbnailNavigation.test.js

__tests__/src/components/WindowIcon.test.js

__tests__/src/components/WindowList.test.js

__tests__/src/components/WindowSideBarButtons.test.js

__tests__/src/components/WindowSideBarInfoPanel.test.js

__tests__/src/components/WindowSideBarPanel.test.js

__tests__/src/components/WindowThumbnailSettings.test.js

__tests__/src/components/WindowTopBar.test.js

__tests__/src/components/WindowTopMenu.test.js

__tests__/src/components/WindowTopMenuButton.test.js

...sts__/src/components/WorkspaceControlPanelButtons.test.js

__tests__/src/components/WorkspaceFullScreenButton.test.js

__tests__/src/components/WorkspaceMenu.test.js

__tests__/src/selectors/index.test.js

locales/en/translation.json

package.json

src/components/App.js

src/components/ManifestForm.js