documented find and find_if resolves issue #118
documented find and find_if
resolves issue #118

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