1153344 - Allow Mongo connections over SSL.

https://bugzilla.redhat.com/show_bug.cgi?id=1153344
Also by having these not set, a traceback does occur:

```
celery[25991]: Traceback (most recent call last):
celery[25991]: File "/usr/bin/celery", line 9, in <module>
celery[25991]: load_entry_point('celery==3.2.0a2', 'console_scripts', 'celery')()
celery[25991]: File "/home/bmbouter/celery/celery/__main__.py", line 30, in main
celery[25991]: main()
celery[25991]: File "/home/bmbouter/celery/celery/bin/celery.py", line 81, in main
celery[25991]: cmd.execute_from_commandline(argv)
celery[25991]: File "/home/bmbouter/celery/celery/bin/celery.py", line 769, in execute_from_commandline
celery[25991]: super(CeleryCommand, self).execute_from_commandline(argv)))     
celery[25991]: File "/home/bmbouter/celery/celery/bin/base.py", line 304, in execute_from_commandline
celery[25991]: argv = self.setup_app_from_commandline(argv)
celery[25991]: File "/home/bmbouter/celery/celery/bin/base.py", line 464, in setup_app_from_commandline
celery[25991]: self.app = self.find_app(app)
celery[25991]: File "/home/bmbouter/celery/celery/bin/base.py", line 484, in find_app
celery[25991]: return find_app(app, symbol_by_name=self.symbol_by_name)
celery[25991]: File "/home/bmbouter/celery/celery/app/utils.py", line 225, in find_app
celery[25991]: sym = imp(app)
celery[25991]: File "/home/bmbouter/celery/celery/utils/imports.py", line 101, in import_from_cwd
celery[25991]: return imp(module, package=package)
celery[25991]: File "/usr/lib64/python2.7/importlib/__init__.py", line 37, in import_module
celery[25991]: __import__(name)
celery[25991]: File "/home/bmbouter/Documents/pulp/server/pulp/server/async/app.py", line 5, in <module>
celery[25991]: from pulp.server import initialization
celery[25991]: File "/home/bmbouter/Documents/pulp/server/pulp/server/initialization.py", line 9, in <module>
celery[25991]: db_connection.initialize()
celery[25991]: File "/home/bmbouter/Documents/pulp/server/pulp/server/db/connection.py", line 73, in initialize
celery[25991]: _CONNECTION = pymongo.MongoClient(seeds, **connection_kwargs)
celery[25991]: File "/usr/lib64/python2.7/site-packages/pymongo/mongo_client.py", line 287, in __init__
celery[25991]: % ', '.join(ssl_kwarg_keys))
celery[25991]: pymongo.errors.ConfigurationError: ssl has not been enabled but the following ssl parameters have been set: ssl_cert_reqs, ssl_ca_certs. Please set `ssl=True` or remove.
```