routes: add parent_group in add repository link on repo groups. Was lost in pyramid migration.

rhodecode/templates/index_base.mako

@@ -36,7 +36,7 b''
                 %else:
                     ##we're inside other repository group other terms apply
                     %if is_admin or group_admin or (group_write and create_on_write):
-                        <a href="${h.route_path('repo_new',parent_group=c.repo_group.group_id)}" class="btn btn-small btn-success btn-primary">${_('Add Repository')}</a>
+                        <a href="${h.route_path('repo_new',_query=dict(parent_group=c.repo_group.group_id))}" class="btn btn-small btn-success btn-primary">${_('Add Repository')}</a>
                     %endif
                     %if is_admin or group_admin:
                         <a href="${h.url('new_repo_group', parent_group=c.repo_group.group_id)}" class="btn btn-small btn-default">${_(u'Add Repository Group')}</a>