fixed variable typo
fix more cart edit bugs
get empty cart records to delete themselves
abstract cart item removal into purchases component

to improve protablity of system
improve abstraction of purchases component
Fix 'first item on cart' bug
make better cart headers
Remove unused Session arguement from PurchasedProduct utilities
fix some bad html in layouts in the account tools section

these turned up while I was trying to validate the html structure in the cart
fix some incorrect html

problem in an empty cart and bad placement of page-end javascript
add price signaling to cart_ui

The cart buttons on checkout needed price info for rendering decisions.
get some starter checkout-button logic going
make some minor changes in cart stuff
start setting up checkout controller heirarchy
continue switch to no-nav checkout page
slight adjustments to set up checkout view
establish config values in bootstrap for api calls
make products carry shipping package info into the cart items
establish call and calc for xml package values
work on xml structure