Persistent between restarts #31

**Branch is in progress - DO NOT MERGE** - 9/22/2014 - ConstableBrew

Adds a embedded RavenDB to store NamedObjects.
* Uses [Nuget](http://docs.nuget.org/docs/start-here/installing-nuget) to manage the RavenDB package. You will likely need to install nuget.

- [ ] DTO classes for `MudObject`s
- [ ] Console command to create full game snapshot
- [ ] Console command to load game snapshot