Allow admin's to add themselves as an owner.

apps/bandwagon/templates/bandwagon/edit_contributors.html

@@ -47,7 +47,7 @@
       <tr>
         <td colspan="4">
           <input id="contributor-ac" class="long" data-src="{{ url('users.ajax') }}"
-                 data-self="{{ amo_user.id }}"
+                 data-owner="{{ collection.owner_id }}"
                  placeholder="{{ _('Enter the email address of the contributor to add') }}" />
           <button id="contributor-ac-button">
             {{ _('Add Contributor') }}

media/js/zamboni/collections.js

@@ -448,7 +448,7 @@ if ($('body.collections-contributors')) {
         e.preventDefault();
         var email = $('#contributor-ac').val();
         var src = $('#contributor-ac').attr('data-src');
-        var my_id = $('#contributor-ac').attr('data-self');
+        var my_id = $('#contributor-ac').attr('data-owner');
 
         // TODO(potch): Add a fancy failure case.
         $.get(src, {q: email}, function(d) {