Symfony2 MongoDB session storage

Important: This has been converted from a class that used Mandango, therefore the passing of Mongo to the service may not be correct. This is untested! PRs welcome :-)

These are also temporary instructions until I find the time to stick it all into a bundle and test it accordingly ;-)

Add this file somewhere in your project, and add the relevant namespace line, eg:
```
 namespace My\Bundle\Session;
```

Add the class as a service in config.yml or wherever your service configuration is:

 services:
     // ...
     session.storage.mongo:
         class: My\Bundle\Session\MongoDBSessionStorage
         arguments:
             con: "%however.you.get.mongo%"
             options: "%mongo.session.options%"

Add session options into your parameters (maybe in config.yml or parameters.yml):

 parameters:
     // ...
     mongo.session.options:
         db_name: myMongoDBName
         collection: session

Configure the session to use your new service, in config.yml:

 framework:
     session:
         storage_id: session.storage.mongo

plancake/Symfony2-MongoDB-session-storage

Symfony2 MongoDB session storage