title: Better ArrayField admin widget?
body: <p>Is there any way to make ArrayField's admin widget allow adding and deleting objects? It seems that by default, it is instead displayed just a text field, and uses comma separation for its values. </p>
  
  <p>Besides being inconvenient, AFAICT in the case the base field of the array is a Char/TextField, this doesn't allow any way of including commas in any of the texts in the array.</p>