Description:
The file list for python2-protobuf is missing file usr/lib/python2.7/site-packages/ __init__.py

I noticed that this file was missing when I launched gajim from the command line.
This error came up: "/usr/lib/python2.7/pkgutil.py:186: ImportWarning: Not importing directory '/usr/lib/python2.7/site-packages/google': missing __init__.py
file, filename, etc = imp.find_module(subname, path)"

I was able to fix the issue by downloading the file manually and putting it at the path specified above.

This file can be found in the *official* github repo for python2-protobuf here: https://github.com/google/protobuf/tree/master/python/google

I have not noticed anything actually breaking because of this missing file but I thought I should report it anyways as it seems like an easy fix and might prevent more serious bugs for others in the future.

Additional info:
* Version 3.5.1.1-1

Steps to reproduce:
1. Run gajim from command prompt
2. Gajim should state that the file is missing as I stated above

It should be reproducible by other programs that use python2 and import this package.