GameStateManagement

Today I have been working on game state management, so I can't show very much.
I don't like the sample Microsoft provided at App hub probably because I don't like to read others peoples code.
I am planning on making every state a GameComponent.
The states I have planned so far are:
- Intro
- Map
- Asteroid field
- Menu
- Combat
- Planet
And I hope they will suffice but know already that Profiles and Options states are missing.
I also wrote a class to manage the transitioning of states. Most of these classes are a work in progress as the game design is still not finished.