LulzSec the hacker group that has been a thorn in the side of major institutions ranging from Sony to the CIA, says it is going away -- but not quietly. The group said late Saturday it would disband. In what it says is its final act of mayhem, it publicly unloaded a trove of documents containing a significant amount of compressed data. "Our planned 50-day cruise has expired, and we must now sail into the distance...our crew of six wishes you a happy 2011," LulzSec says in its final message. . The group says it chose to end its campaign...