added summed area table example
added summed area table example

--HG--
extra : convert_revision : svn%3A83215879-3e5a-4751-8c9d-778f44bb06a5/trunk%40406

zeryx/thrust,zeryx/thrust,raygit/thrust,andrewcorrigan/thrust-multi-permutation-iterator,thrust/thrust,xiongzhanblake/thrust_src,jaredhoberock/thrust,thvasilo/thrust,arnabgho/thrust,jaredhoberock/thrust,sdalton1/thrust,sarvex/thrust,xiongzhanblake/thrust,dachziegel/thrust,mohamed-ali/thrust,arnabgho/thrust,jaredhoberock/thrust,zeryx/thrust,Ricardo666666/thrust,raygit/thrust,raygit/thrust,marksantos/thrust,arnabgho/thrust,sarvex/thrust,dachziegel/thrust,mohamed-ali/thrust,mohamed-ali/thrust,sdalton1/thrust,thrust/thrust,thrust/thrust,egaburov/thrust,zhenglaizhang/thrust,thrust/thrust,zhenglaizhang/thrust,andrewcorrigan/thrust-multi-permutation-iterator,thvasilo/thrust,GrimDerp/thrust,xiongzhanblake/thrust_src,egaburov/thrust,xiongzhanblake/thrust_src,marksantos/thrust,marksantos/thrust,zhenglaizhang/thrust,jaredhoberock/thrust,Ricardo666666/thrust,thrust/thrust,GrimDerp/thrust,sarvex/thrust,jaredhoberock/thrust,egaburov/thrust,xiongzhanblake/thrust,thvasilo/thrust,sdalton1/thrust,xiongzhanblake/thrust,Ricardo666666/thrust,dachziegel/thrust,andrewcorrigan/thrust-multi-permutation-iterator,GrimDerp/thrust