Support for the updateCard:closed action
Different Action Class for Position Changes
 + New UpdateCardPositionAction class
 + Added Pos property to CardName
CloseCard and UpdateCardPosition Action Changes
 + Removed the closed and pos properties from cardname
 + gave each of the actions above a custom cardname class
 + added pos to UpdateCardPositionAction.CardName class
 + added closed to CloseCardAction.CardName class
Moved update card Action classes to their own files