Exponentcms Exponent CMS

A number of ecommerce fixes and tweaks, esp. in regards to the split credit card billing: now properly sends the order email regardless of DEVELOPMENT setting; properly gets invoice id BEFORE processing payment; split credit card now displays card type and number in invoices (otherwise you'd never be able to have a complete credit card number to process); now properly sends split credit card email with other part of credit card number; adds 'checkout' title/message to top of checkout view in addition to confirm view; streamlines checkout view by removing one redundant heading line; consolidates all invoice related store settings to a single configuration tab instead of two. simplifies 'payment info' for customers while still providing detailed payment data for admins; now styles email invoices more professionally (we weren't including the styles?); changes a number of billing calculator methods to be consistent across model; presents a more consisten checkout process (we didn't show checkout breadcrumb on confirm view & didn't display checkout title/message on checkout view (duh?)
https://github.com/exponentcms/exponent-cms/commit/c17e2b2170200aa0...