Fixed typo.

Signed-off-by: Cristiano Urban <cristiano.urban@inaf.it>

transfer_service/job_scheduler.py

@@ -18,9 +18,9 @@ class JobScheduler(object):
 
     def addTaskExecutor(self, taskExecType):
         if taskExecType == "group_rw_executor":
-            self.taskExecutorList.append(ImportExecutor())
-        elif taskExecType == "import_executor":
             self.taskExecutorList.append(GroupRwExecutor())
+        elif taskExecType == "import_executor":
+            self.taskExecutorList.append(ImportExecutor())
         elif taskExecType == "retrieve_preprocessor":
             self.taskExecutorList.append(RetrievePreprocessor())
         elif taskExecType == "store_preprocessor":