call method on room now to LL members

src/components/structures/RoomView.js

@@ -317,7 +317,7 @@ module.exports = React.createClass({
 
                 // lazy load members if enabled
                 if (SettingsStore.isFeatureEnabled('feature_lazyloading')) {
-                    MatrixClientPeg.get().loadRoomMembersIfNeeded(room.roomId).catch((err) => {
+                    room.loadMembersIfNeeded().catch((err) => {
                         const errorMessage = `Fetching room members for ${this.roomId} failed.` +
                             " Room members will appear incomplete.";
                         console.error(errorMessage);