Minor changes in Kruzhochek class.

Signed-off-by: Stanislav Demyanovich <stan@angrybubo.com>
Destruction order is fixed.
CWinapiRoot Destructor and Main Loop are modified, CGameStateManager clearStates() is fixed.

Signed-off-by: Stanislav Demyanovich <stan@angrybubo.com>
Kruzhocheks' creation interval is decreased.

Signed-off-by: Stanislav Demyanovich <stan@angrybubo.com>
Appropriate deleting of window resources.

Signed-off-by: Stanislav Demyanovich <stan@angrybubo.com>