Make .checkout_panel styles more specific, so .row-fluid [class*=span3] doesn't override them.
Merge branch 'feature/bootstrap-fluid-and-checkout-panel-styles' into develop

Conflicts:
	cartridge/shop/static/css/cartridge.css
Revert "Merge branch 'feature/better-cart-order-totals-styling' into develop"

This reverts commit c51ea11278f3ee35726bbef880783a20fe571e80, reversing
changes made to 25ac68f80c920a00356960a2f74977be78201a7a.