Add new menu “File“ with items to menuBar.
Change LastFM cache temp directory.
Modify CollectionMenu component.

The CollectionMenu component provides the createCollection() function.
This function returns a newly created CollectionModel with an optional
query parameter. The CollectionMenu also has a new property “query“.
This property holds the current query to use with the CollectionView.
Synchronize CollectionMenu and XMPPRosterView.

When an item of the CollectionMenu or the XMPPRosterView is selected,
the currentIndex of the other view is set to -1.
Add smooth animation on Collection's filter view.