Create faster-train
Cube Growing
Parallization and on disk features
resolve memory leak
parallel feature generation regardless of save_features
Revert "parallel feature generation regardless of save_features"

This reverts commit 42e5c3602c2082ffc8fce512080d5c41fc4d9ca4.
revert to 42e5c3602c2082ffc8fce512080d5c41fc4d9ca4
add mssing m4 files for boost
add BOOST_*FLAGS for custom boost library
bug fix: initialization
Merge pull request #3 from hwidongna/patch-1

faster-train