Fix the people section

This does two things:
 - Fixes an incorrect import that was causing Direct Chat toggle to not be editable #3355
 - Use props.list in RoomSubList when calculating whether to show IncomingCallDialog. Fixes #2956

src/components/structures/RoomSubList.js

@@ -417,7 +417,7 @@ var RoomSubList = React.createClass({
         if (this.props.incomingCall) {
             var self = this;
             // Check if the incoming call is for this section
-            var incomingCallRoom = this.state.sortedList.filter(function(room) {
+            var incomingCallRoom = this.props.list.filter(function(room) {
                 return self.props.incomingCall.roomId === room.roomId;
             });
 
@@ -507,7 +507,7 @@ var RoomSubList = React.createClass({
                         var ErrorDialog = sdk.getComponent("dialogs.ErrorDialog");
                         console.error("Failed to add tag " + self.props.tagName + " to room" + err);
                         Modal.createDialog(ErrorDialog, {
-                            title: "Error", 
+                            title: "Error",
                             description: "Failed to add tag " + self.props.tagName + " to room",
                         });
                     });

src/components/views/context_menus/RoomTileContextMenu.js

@@ -24,7 +24,7 @@ import sdk from 'matrix-react-sdk';
 import MatrixClientPeg from 'matrix-react-sdk/lib/MatrixClientPeg';
 import dis from 'matrix-react-sdk/lib/dispatcher';
 import DMRoomMap from 'matrix-react-sdk/lib/utils/DMRoomMap';
-import Rooms from 'matrix-react-sdk/lib/Rooms';
+import * as Rooms from 'matrix-react-sdk/lib/Rooms';
 import * as RoomNotifs from 'matrix-react-sdk/lib/RoomNotifs';
 import Modal from 'matrix-react-sdk/lib/Modal';