replace old accessor.hpp file with function.hpp in makefile
replace old accessor.hpp file with function.hpp in makefile

nvmd/libkdtree,nvmd/libkdtree,kbranigan/libkdtree,kbranigan/libkdtree,eddyxu/kdtree-serialization,nvmd/libkdtree,eddyxu/kdtree-serialization,kbranigan/libkdtree,eddyxu/kdtree-serialization