Luc manage normalization

Add evaluation for omp forest regressor + use normalization parameter. Storing results isn't done yet

code/bolsonaro/data/dataset_loader.py

@@ -71,7 +71,7 @@ class DatasetLoader(object):
             test_size=dataset_parameters.dev_size,
             random_state=dataset_parameters.random_state)
 
-        # TODO
+        # TODO?
         if dataset_parameters.normalize:
             pass