Add filter for credit card images
Fix spacing
Change filter name
Add error for discount duplication
Helps to add all relevant files...
Add filters to add/edit discount pages
Add post and body classes
Merge pull request #2415 from ghost1227/issue/2414

Add error for discount duplication
Tweak error message for #2414
Tweak return value names for consistency
Minor tweaks
Properly handle item quantities when adding to cart
Add is_singular check and class
Merge pull request #2422 from ghost1227/issue/2391

Add filters to add/edit discount pages
Merge pull request #2419 from ghost1227/issue/2352

Add post and body classes
Merge branch 'issue/2409' of github.com:ghost1227/Easy-Digital-Downloads into ghost1227-issue/2409
Merge branch 'ghost1227-issue/2409' into release/2.1
Cleanup edd_show_payment_icons(). #2409
Add downloads to At A Glance widget
Remove date filter on Download CPT