title: Required to create a OpenERP/Odoo POS category and product associated to this category
body: <p>I'm using OpenERP POS 7 latest version. I need help for create a product under specific category.</p>
  
  <p>Use Case: I like to create a new category and create a product for that new category.</p>
  
  <p>Steps Followed:</p>
  
  <p>Step 1: I create a Category  from "Point Of Sale" -> "Products" -> "Product Category" -> "Create"</p>
  
  <p>Steps 2: When I create a product from "Point Of Sale" -> "Products" -> "Product" -> "Create", I'm not seeing the already created category in step 1. In Product creation screen again we can create a new category but category created from product screen in not displayed in sales screen</p>
  
  <p>Also I observe that in Odoo pos demo I can see the category labeled as  "Pos/Public Product Categories" instead of "Product Category" is there any difference in these?</p>