Woocommerce Local Pickup Plus 2.11.3

* Fix - Compatibility issue with WooCommerce 2.6.14 introduced in version 2.3.0
* Fix - Ensure that virtual items are skipped when building packages

* Fix - Ensure merging packages tries to retain selected pickup location
* Fix - Ensure the "Click to ship this item/these items" link is not shown when no shipping methods are available
* Fix - Ensure pickup location is not reset if Local Pickup Plus is the only available method and "Ship Items" is the default cart item handling mode
* Fix - Ensure pickup location field correctly displays placeholders when no selection has been made
* Fix - Ensure only a single pickup package is created at checkout when using per-order location with automatic grouping

* Tweak - You can set the cart items default handling to either pickup or ship also when using the "Automatically group cart items into as few packages as possible" option
* Tweak - When using "Automatically group cart items into as few packages as possible" checkout mode, do not show a toggle to change package handling from pickup to shipping if no other shipping methods are available for the package than pickup
* Fix - Address a pickup appointments issue where the lead time is set to zero days and the next day in calendar is a public holiday which could become available to customers for scheduling a pickup
* Fix - If Cash on Delivery is enabled exclusively for Local Pickup Plus, orders without items for pickup shouldn't have Cash on Delivery available at checkout
* Misc - Removed support for WooCommerce 2.5