Review request: MemoryMeta changes and new iPod collection

[Matěj Laitl]

On 19. 1. 2012 Bart Cerneels wrote:
> > Bart, do you plan to make the UmsCollection changes or should I add it
> > to my TODO list?
> 
> I guess it will be faster if you implement it. Gives you a change to
> spot any mistakes in my coding as well. I'll probably have to little
> time the next few weeks anyway.

Okay, I'll do it. I've already seen a few little bugs in UmsCollection, so 
I'll take these, too.

			Matěj