fixed standard_library.install_aliases() failed under SLES11SP1

Author: lisongmin

src/future/types/newrange.py

@@ -152,6 +152,9 @@ def __init__(self, range_):
     def __iter__(self):
         return self
 
+    def __next__(self):
+        return next(self._stepper)
+
     def next(self):
         return next(self._stepper)