Bulk Table Editor for WooCommerce 2.5.8

* Minor fixes in automatic stock management ++
* Added new tab for featured image, gallery images and categories
* Fixes and improvements

* Fixes in the queries, functions for this and more to increase speed
* Added integration for WooCommerce Brands
* Added bulk functions to add, set and remove brands (option in settings to enable)
* Added mulitselect filter for Brands
* Included Brands in linked products (below SKU)
* Fixes in JS for filters
* Added option in settings to search (text and sku) in current selected categories (database search)
* Minor fixes in UI - added action buttons in box, made range filter smaller

* Changed updating products to automatically understand stock status
* Minor fix in UI for filters and action buttons
* Fixes in JS files to prevent jQuery issues with other plugins, some speed improvements
* Added minified CSS file
* Minor fixes and improvements