Fixed a bug introduced during the upgrade to 4.00. If the "Enable Product Grids Tabs On Home Page" was not checked there was an exception on the home page.
Share buttons should be visible only when the "ShowShareButton" setting is enabled
Fixed an issue with the styling of the dropdown in item boxes - when the background is darker the options were not visible
When Infinite Scroll is enabled and you scroll several pages down and visit a certain product page and then hit the Back button, you will now go back to the same product in the list of products (rather than to the top of the catalog page).