YITH WooCommerce Gift Cards Premium 4.10.0

* New: Support to WooCommerce 3.5.0
* New: Basic integration with WooCommerce Smart Coupons
* Tweak: Allow to use the coupons form with a gift card code activating a filter
* Tweak: Aelia compatibility get the order total in actual currency
* Tweak: new action links and plugin row meta in admin manage plugins page
* Tweak: customize the button label for the gift card email and show it always even without applying disscount
* Update: Updated the language files
* Update: updated the Norwegian language, thanks to Jørgen Eggli.
* Update: Updated the plugin-FW
* Fix: email button add to cart automatically for non gift this product
* Fix: not show "x" image when logo is not selected
* Fix: fixing a string error
* Dev: Added new filter yith_ywgc_email_automatic_discount_text
* Dev: added a new action yith_ywgc_before_disallow_gift_cards_with_same_title_query
* Dev: added filter yith_ywgc_gift_card_orders_total
* Dev: added new arg to the yith_wcgc_template_after_message filter
* Dev: check if is_array, prevent errors with php "Count" function
* Dev: added a filter 'ywgc_empty_recipient_note'
* Dev: filters for images on the pdf
* Dev: new filter yith_wcgc_gift_card_details_mandatory_recipient
* Dev: javascript minify of frontend
* Dev: filter to display gift_amounts as a select2 of jquery

* Tweak: Compatibility with new Aelia version (4.6.5.180828)
* Tweak: Set gift card custom post type as exportable
* Tweak: filter to customize the "add to card" of the gift card
* Tweak: text changed for better understanding
* Tweak: Manual amount option displayed even with only one gift card price
* Update: .pot main language file
* Update: Spanish translation
* Update: Dutch language
* Update: Italian language
* Fix: Add price with WooCommerce configuration taxes to the cart
* Dev: remove pdfs after sending
* Dev: Race conditions - gift card duplicated
* Dev: adding admin panel javascript minimized

Tweak Compatibility with new Aelia version (4.6.5.180828)
Tweak Set gift card custom post type as exportable
Tweak filter to customize the "add to card" of the gift card
Tweak text changed for better understanding
Tweak Manual amount option displayed even with only one gift card price
Update .pot main language file
Update Spanish translation
Update Dutch language
Update Italian language
Fix Add price with WooCommerce configuration taxes to the cart
Dev remove pdfs after sending
Dev Race conditions - gift card duplicated
Dev adding admin panel javascript minimized