added edd icons font
added icon font styles
added "add to cart" button for ajax use only

- the button contains a spinner icon
changed ajax added message
only print ajax add to cart button if ajax is enabled
ajax add to cart button scripts and styles
wrapped credit card info legend in a span to allow for better styling
checkout form style tweaks

- mostly spacing changes
#edd_final_total_wrap was in a field set, nested in a field set and it contained no fields…so i stopped that
wrapping all checkout fieldset legends in spans
checkout styling tweaks
added iconmoon.io config file for edd icon font
fixed small bug where checkout button was jumping…slightly.
Tweak discount code wrap. #1318
Remove slidedown effect for discount code field. #1318
Tweak login header. #1318
Set margin on edd_errors wrapper. #1318
Tweak added to cart notification. #1351
CSS fix for stupid themes that modify wpautop
Merge pull request #1355 from easydigitaldownloads/feature/pretty-cart

Feature/pretty cart