Fix show AoT window default value

app/features/conference/components/Conference.js

@@ -8,7 +8,7 @@ import { connect } from 'react-redux';
 import { push } from 'react-router-redux';
 
 import config from '../../config';
-import { setEmail, setName } from '../../settings';
+import { getSetting, setEmail, setName } from '../../settings';
 
 import { conferenceEnded, conferenceJoined } from '../actions';
 import { LoadingIndicator, Wrapper } from '../styled';
@@ -407,7 +407,8 @@ class Conference extends Component<Props, State> {
  */
 function _mapStateToProps(state: Object) {
     return {
-        _alwaysOnTopWindowEnabled: state.settings.alwaysOnTopWindowEnabled,
+        _alwaysOnTopWindowEnabled:
+            getSetting(state, 'alwaysOnTopWindowEnabled', true),
         _avatarURL: state.settings.avatarURL,
         _email: state.settings.email,
         _name: state.settings.name,

app/features/settings/functions.js

@@ -0,0 +1,20 @@
+// @flow
+
+/**
+ * Get's the value for the given setting, providing a default value.
+ *
+ * @param {Object} state - The redux state.
+ * @param {string} setting - The name for the desired setting.
+ * @param {*} defaultValue - The default value, in case the setting is
+ * undefined.
+ * @returns {*} The setting value.
+ */
+export function getSetting(state: Object, setting: string, defaultValue: any) {
+    const value = state.settings[setting];
+
+    if (typeof value === 'undefined') {
+        return defaultValue;
+    }
+
+    return value;
+}

app/features/settings/index.js

@@ -1,6 +1,7 @@
 export * from './actions';
 export * from './actionTypes';
 export * from './components';
+export * from './functions';
 export * from './styled';
 
 export { default as middleware } from './middleware';