Finish the required support for #4487

@kinware here you go...

```python
>>> from salt import version
>>> dict(version.versions_information())
{'PyYAML': '3.10', 'pycrypto': '2.6', 'Python': '2.7.3 (default, Apr 20 2012, 22:44:07)', 'msgpack-pure': None, 'M2Crypto': '0.21.1', 'Jinja2': '2.6', 'msgpack-python': '0.1.13', 'ZMQ': '3.2.2', 'Salt': '0.14.0-658-gb8259b4', 'PyZMQ': '13.0.2'}
>>> import pprint
>>> pprint.pprint(dict(version.versions_information()))
{'Jinja2': '2.6',
 'M2Crypto': '0.21.1',
 'PyYAML': '3.10',
 'PyZMQ': '13.0.2',
 'Python': '2.7.3 (default, Apr 20 2012, 22:44:07)',
 'Salt': '0.14.0-658-gb8259b4',
 'ZMQ': '3.2.2',
 'msgpack-pure': None,
 'msgpack-python': '0.1.13',
 'pycrypto': '2.6'}
>>> 

```