Installing on windows requires 'protobuf.lib' file that does not exist

Installing on windows with 
pip install gcld3 finally requires `protobuf.lib` file.
```
    LINK : fatal error LNK1181: cannot open input file 'protobuf.lib'
```

But there is no `protobuf.lib` and no info on it on the internet.
It looks like we need `libprotobuf.lib` file. Copying `libprotobuf.lib` to `protobuf.lib` (and setting environment variables to it) solved the issue.