added more code for the rectangle type trees
added more code for the rectangle type trees

BookChan/mlpack,BookChan/mlpack,chenmoshushi/mlpack,ranjan1990/mlpack,ersanliqiao/mlpack,darcyliu/mlpack,ajjl/mlpack,chenmoshushi/mlpack,palashahuja/mlpack,darcyliu/mlpack,Azizou/mlpack,palashahuja/mlpack,bmswgnp/mlpack,BookChan/mlpack,lezorich/mlpack,erubboli/mlpack,stereomatchingkiss/mlpack,theranger/mlpack,lezorich/mlpack,trungda/mlpack,lezorich/mlpack,minhpqn/mlpack,datachand/mlpack,erubboli/mlpack,darcyliu/mlpack,datachand/mlpack,ranjan1990/mlpack,bmswgnp/mlpack,theranger/mlpack,ajjl/mlpack,erubboli/mlpack,Azizou/mlpack,ranjan1990/mlpack,datachand/mlpack,trungda/mlpack,chenmoshushi/mlpack,palashahuja/mlpack,minhpqn/mlpack,thirdwing/mlpack,trungda/mlpack,thirdwing/mlpack,minhpqn/mlpack,stereomatchingkiss/mlpack,thirdwing/mlpack,stereomatchingkiss/mlpack,Azizou/mlpack,bmswgnp/mlpack,theranger/mlpack,ajjl/mlpack,ersanliqiao/mlpack,ersanliqiao/mlpack