add autogen.sh script
add autogen.sh script

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