Reenable defaults for iterator_adaptor's template parameters.
Reenable defaults for iterator_adaptor's template parameters.

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