Fix nolocal naming (#24)

* Fix nolocal naming
* Fix `cb_resnet` as well

ppdet/modeling/backbones/cb_resnet.py

@@ -28,7 +28,7 @@ from ppdet.core.workspace import register, serializable
 from numbers import Integral
 
 from .name_adapter import NameAdapter
-from .nonlocal import add_space_nonlocal
+from .nonlocal_helper import add_space_nonlocal
 
 __all__ = ['CBResNet']
 
@@ -423,4 +423,3 @@ class CBResNet(object):
 
         return OrderedDict([('res{}_sum'.format(self.feature_maps[idx]), feat)
                             for idx, feat in enumerate(res_endpoints)])
-

ppdet/modeling/backbones/resnet.py

@@ -27,7 +27,7 @@ from paddle.fluid.initializer import Constant
 from ppdet.core.workspace import register, serializable
 from numbers import Integral
 
-from .nonlocal import add_space_nonlocal
+from .nonlocal_helper import add_space_nonlocal
 from .name_adapter import NameAdapter
 
 __all__ = ['ResNet', 'ResNetC5']