WooCommerce Chained Products 3.7.0

* New: WooCommerce 3.7.1 compatible
* Fix: Chained Products shortcode not showing price when price='yes'
* Fix: Chained Products shortcode style='grid' throwing undefined offset error
* Fix: Chained Products CSS included on all pages on frontend
* Fix: PHP Warnings: A non-numeric value encountered
* Update: POT file

* New: Compatibility with WooCommerce Variation Swatches and Photos plugin
* Fix: Incorrect product link when updating chained variation products in existing orders
* Fix: Infinite loop when a chained variation child product is deleted
* Update: Disable add to cart button for variation product if chained product is out of stock (When 'Manage stock' is enabled)
* Update: Renamed 'Manage stock' tip for better clarity
* Update: Welcome page
* Update: POT file

* Fix: Chained Product search not returning all search results (products) in some cases
* Fix: Welcome page CSS
* Update: Tested upto WordPress 5.2.1 and WooCommerce 3.6.4
* Update: POT file