Added control panel and edited vocabulary so it gets the VAT settings from the control panel
Added the settings for the control panel, vat, shop_email shop_show_checkout and shop_show_cart

The "show" setting are for use with the cart portlet
defined "currency" to get the one set in the control panel and also added properties for "show_checkout" and show_go_to_cart
Added the control panel to configure.zcml
Added namespace to configure.zcml
Added (back) import of IBda Shop settings from the registry to be used with the cart