[Azoth Xoox] Schedule roster save only for roster VCards.
[Azoth Xoox] Initial recovery from ODS is initial.
[Azoth Xoox] Schedule saving roster on new items.

Instead of saving directly.
[Azoth Xoox] Don't save roster twice if item is added.
[SB2] Just draw source if strength is low in Desaturate.
[SB2] Severely optimized Desaturate effect.
[BT] Don't use deprecated members in AddMagnet().
[BT] Don't use deprecated bool flags in AddFile().
[BT] Don't use deprecated bool flags in RestoreSingleTorrent().