Update obsolete reference to svn trunk.
Update obsolete reference to svn trunk.

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