Please allow xmoto 0.2.2-2 in testing

[Samuel Mimram <samuel.mimram@ens-lyon.org>]

Hi,

Could you please allow xmoto 0.2.2-2 in testing? Currently testing has
0.2.2-1 and the only difference between them is a patch that corrects
the url where to download new levels for the game (upstream has moved
his website).

Cheers,

Samuel.