Clearly Santa Claus was in town this week. His latest trip has brought at least two interesting (at least for me) new products: Silverlight 5 and Windows Server AppFabric 1.1.Silverlight 5 Community of .NET developers has at least few important milestones marked in their calendars. One of them (maybe even the most important one) is BUILD Conference - usually Microsoft uses this event as an opportunity to announce new products and / or emphasize their focus on some trends. After this year’s BUILD conclusions were pretty obvious: good bye Silverlight, long live HTML5. There was no single prelection…