Merge branch 'dash-3.0' into default-react-18

Author: T4rk1n

components/dash-core-components/src/components/LogoutButton.react.js

@@ -14,7 +14,6 @@ import Interval from './components/Interval.react';
 import Link from './components/Link.react';
 import Loading from './components/Loading.react';
 import Location from './components/Location.react';
-import LogoutButton from './components/LogoutButton.react';
 import Markdown from './components/Markdown.react';
 import RadioItems from './components/RadioItems.react';
 import RangeSlider from './components/RangeSlider.react';
@@ -45,7 +44,6 @@ export {
     Link,
     Loading,
     Location,
-    LogoutButton,
     Markdown,
     RadioItems,
     RangeSlider,

components/dash-core-components/src/components/css/logout.css

@@ -25,7 +25,7 @@ app.layout = dash_table.DataTable(
 )
 
 if __name__ == '__main__':
-    app.run_server(debug=True)
+    app.run(debug=True)
 ```
 
 ![Interactive Dash DataTable](https://user-images.githubusercontent.com/1280389/47935912-67187080-deb2-11e8-8936-34b0c99b518f.png)

components/dash-core-components/src/index.js

@@ -26,7 +26,7 @@
     get_relative_path,
     strip_relative_path,
 )
-from .long_callback import (  # noqa: F401,E402
+from .background_callback import (  # noqa: F401,E402
     CeleryManager,
     DiskcacheManager,
 )