Ninja Tables Pro 5.0.16

* Removed: Empty tfoot tag
* Updated: column responsive breakpoints docs link
* Added: Nonce validation for public ajax request
* Added: Netherlands language support
* Added: Table list sorting by post-title & ID
* Improved: Template choose option for Drag & Drop table
* Improved: Help & documentation page
* Fixed: Target attribute spelling issue for drag & drop
* Fixed: Excel formula rendering for multiple table in same page
* Fixed: Color loading issue on print
* Fixed: Duplicate style loading issue

* Fixes custom filter disappear issue

* Fixes: Fixes CSV/JSON export permission issue
* Fixes post author name display issue in woocommerce table
* Fixes cart & checkout button text save issue
* Fixes Custom filter number_range minus sing(-) issue
* Removed href if image doesn't have URL for drag & drop table