dashicons for loader and arrows.
add dependency to dashicons.
mar icons stuff
payment box. #6737
remove darkorlight mixin refs
line-heights and font sizes
cart omg shadows
general shadows
layered nav
validation styles
payment form row #6737
Removed old ajax_loader_url param from all js files
Added Simplify Commerce minified js file
Added remove link in cart widget #6754
[2.2] During refunds, correctly set shipping tax totals

Fixes #6691
API - set_fee should support tax_data

Closes #6719 cc @maxrice
Format totals to 2dp when doing paypal checks Closes #6678
Fixed missing comma

@mikejolley
cart removal button. closes #6754
changelog