Add blank description to todo list creation and editing

This is a field shown on the general_form.html, and shows up as
@@@INVALID@@@ in development environments.

Signed-off-by: Dan McGee <dan@archlinux.org>

todolists/views.py

@@ -88,6 +88,7 @@ def add(request):
 
     page_dict = {
             'title': 'Add Todo List',
+            'description': '',
             'form': form,
             'submit_text': 'Create List'
     }
@@ -110,6 +111,7 @@ def edit(request, list_id):
 
     page_dict = {
             'title': 'Edit Todo List: %s' % todo_list.name,
+            'description': '',
             'form': form,
             'submit_text': 'Save List'
     }