Prestashop 1.5 module for products mass update

I have a module for Prestashop 1.4 and I need adapt it to Prestashop 1.5 and add a few minor/easy changes. This is the module description: The module allows you to quickly update multiple items. Easily create product list for updates and intuitive access to the most important parameters make the module an essential tool for each vendor. Features: * Dynamically creates a list of items (AJAX) * Advanced filter items * Edit attributes * Edit the attribute price as the price of final * Quick removal of products and attributes * Global change in prices and quantities according to a fixed type (see below) * Ability to edit by price with VAT and without VAT * Thumbnail of the product (preview) The option price changes: * A given amount of * Percentage * This option changes in the quantities: * By decreasing or increasing by the specified amount * Set all the products, a selected amount The filter lets you choose the items at: * Category (single or multiple) * Manufacturers (single or multiple) * Suppliers (single or multiple) * Net price of buying and selling * Margin (net price of sales / net purchase price) * Quantities in stock * Other... Attached are some screenshots of the module. I will provide the module source code.