Here are some previous submissions of this item:<p><a href="http://news.ycombinator.com/item?id=1951274" rel="nofollow">http://news.ycombinator.com/item?id=1951274</a> : a few comments<p><a href="http://news.ycombinator.com/item?id=1951266" rel="nofollow">http://news.ycombinator.com/item?id=1951266</a> : no comments<p><a href="http://news.ycombinator.com/item?id=1941149" rel="nofollow">http://news.ycombinator.com/item?id=1941149</a> : no comments<p><a href="http://news.ycombinator.com/item?id=1940035" rel="nofollow">http://news.ycombinator.com/item?id=1940035</a> : no comments<p><a href="http://news.ycombinator.com/item?id=1938299" rel="nofollow">http://news.ycombinator.com/item?id=1938299</a> : a few comments