Added two new events to the obtaining of the cart. This triggers an even...

...t before and after the cart retrieval is completed (allows you to validate that the cart items are still valid if the cart has remained for a while for example).
In all honesty I am not (at the moment) using this event directly. If you don't like this location and want to change other stuff in relation to it I'll just remove it. Think you're missing something by not allowing it though.