converted over to bal from author, and fixed up the way sub books / series interact

templates/books.html

@@ -39,8 +39,8 @@
 		  	<td data-sort="{{book.id}}"><a href="/book/{{book.id}}">{{book.title}}</a></td>
 		  {% endif %}
 		  <td>
-		  {% for auth in book.author %}
-			  {{ auth['surname'] }}, {{auth['firstnames']}}
+		  {% for auth in book.bals %}
+			  {{ auth.author.surname}}, {{auth.author.firstnames}}
 		  {% endfor %}
 		  </td>
 			{% if not InDBox %}