Fix two bugs

[zhixuanli]

https://github.com/youansheng/torchcv-seg/blob/master/models/nets/denseassp.py#L67

change

elif isinstance(m, ModuleHelper.BatchNorm2d(bn_type=self.configer.get('network', 'bn_type'))):

to

elif isinstance(m, type(ModuleHelper.BatchNorm2d(bn_type=self.configer.get('network', 'bn_type')))):

delete this line
https://github.com/youansheng/torchcv-seg/blob/master/models/nets/denseassp.py#L33

self.num_features = self.num_features // 2

and this line:
https://github.com/youansheng/torchcv-seg/blob/master/models/nets/denseassp.py#L108

self.add_module('norm2', ModuleHelper.BatchNorm2d(bn_type=bn_type)(num_features=input_num)),

Thanks for your code again!
Have a nice day!! 😄

[donnyyou]

You could submit a pull request. And I will merge it if you're right!