Photo by Daniel.Techie{TaiShan~4 Ever} @ 127.0.0.1 The National Zoo has at last released more details on the planned “Tai Shan Farewell Celebration” it started hyping a couple weeks ago, and they’re pretty fantastic. Chief among them: a planned “Land O’Lakes® Butterstick Tribute,” surely the greatest promotional tie-in ever conceived. According to a zoo release, the Land O’Lakes tribute will “showcase photos of Tai Shan since his birth in 2005.” Dig it. This is one…