* Tweak - Important: Updated the template for displaying Price add-ons.
* Tweak - Supported decimal values for Price add-ons, based on the store's decimal separator.
* Tweak - Removed use of global product variable in the context of the admin page.
* Fix - Fixed dates before 1970 in Date Picker add-on not being allowed.
* Fix - Fixed non-display of add-ons in single product block.
