Merge pull request #4735 from metabase/react-v15.5.0

.eslintrc

frontend/src/metabase/App.jsx

...abase/admin/databases/components/CreatedDatabaseModal.jsx

...metabase/admin/databases/components/DatabaseEditForms.jsx

...tabase/admin/databases/components/DeleteDatabaseModal.jsx

...c/metabase/admin/databases/containers/DatabaseEditApp.jsx

...c/metabase/admin/databases/containers/DatabaseListApp.jsx

...end/src/metabase/admin/datamodel/components/FormInput.jsx

...end/src/metabase/admin/datamodel/components/FormLabel.jsx

.../src/metabase/admin/datamodel/components/FormTextArea.jsx

...etabase/admin/datamodel/components/ObjectActionSelect.jsx

...metabase/admin/datamodel/components/ObjectRetireModal.jsx

...tabase/admin/datamodel/components/PartialQueryBuilder.jsx

...tabase/admin/datamodel/components/database/ColumnItem.jsx

...abase/admin/datamodel/components/database/ColumnsList.jsx

...se/admin/datamodel/components/database/MetadataHeader.jsx

...se/admin/datamodel/components/database/MetadataSchema.jsx

...dmin/datamodel/components/database/MetadataSchemaList.jsx

...ase/admin/datamodel/components/database/MetadataTable.jsx

...admin/datamodel/components/database/MetadataTableList.jsx