Merge pull request #16 from chfeltman/master

Code analysis cleanup of existing files, added standard animations and keyboard controller
Added Deserializable
Finished Actor's Deserialize and fixed ISerializable
Updated Actor's Deserialize function with Hunter's code
Finished first draft of Serialize and Deserialize functions for Actor, GameSprite, and SpriteAnimation. Added BodyInfo.cs
Fixed Code Analysis problems, among other complaints
Added Actor's XElement constructor
Fixed a Code Analysis problem
Merge pull request #20 from Porkenstein/master

Fixed Code Analysis problem
Addition of MapLoader and Content Control
Merge branch 'master' of https://github.com/SDSMTGDT/Physicist
Addition of MapLoader and ContentController Classes, merged with Derek's latest