Game: Put skeletons inside the Chooser.

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS15]$/Atomix;C41263
Game: update components to reflect skeletons inside chooser.

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS15]$/Atomix;C41264
Content: Add two original levels.

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS15]$/Atomix;C41265
Editor: Add correct tile for wall.

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS15]$/Atomix;C41266