Update URL strucuture, fixed string based calls

awx/api/urls/label.py

@@ -0,0 +1,17 @@
+# Copyright (c) 2017 Ansible, Inc.
+# All Rights Reserved.
+
+from django.conf.urls import url
+
+from awx.api.views import (
+    LabelList,
+    LabelDetail,
+)
+
+
+urls = [
+    url(r'^$', LabelList.as_view(), name='label_list'),
+    url(r'^(?P<pk>[0-9]+)/$', LabelDetail.as_view(), name='label_detail'),
+]
+
+__all__ = ['urls']