redSHOP - Price Filtering

1. Make sure install module redSHOP - Price Filtering is successful.
2. Config this module: Extensions → Module → search "redSHOP - Price Filtering" with don't choose category
   
   
   Go to frontend and preview product. Web page will show module "redSHOP - Price Filtering" with all product on all category:
   
   
3. Config this module: Extensions → Module → search "redSHOP - Price Filtering" with choose 1 category:
   
   
   Go to frontend and preview product. Web page will show module "redSHOP - Price Filtering" with all products on this category:
   
   
4. Config this module: Extensions → Module → search "redSHOP - Price Filtering" with choose all category has on local:
   
   
   Go to frontend and preview product. Web page will show module "redSHOP - Price Filtering" with all products on all category