title: Django admin: add multiple items from textfield to database
body: <p>I need to make a small app, in which only django-admin is used.</p>
  
  <p>So I have a model with one table, which have one column, let's say table called items, and column name is "name".</p>
  
  <p>I want to have instead of one charfield per row - one textfield. Every line of this textfield will be added as new row to table "items". </p>
  
  <p>edit: would be great to have file upload field also... and then manually parse data</p>
  
  <p>I can't even imagine where to start.</p>