* Apply Configurable to objective functions. * Apply Model to Learner and Regtree, gbm. * Add Load/SaveConfig to objs. * Refactor obj tests to use smart pointer. * Dummy methods for Save/Load Model.
* Apply Configurable to objective functions. * Apply Model to Learner and Regtree, gbm. * Add Load/SaveConfig to objs. * Refactor obj tests to use smart pointer. * Dummy methods for Save/Load Model.