As a user I can manage Pulp using a systemwide command

closes #2421
https://pulp.plan.io/issues/2421

app/pulp/app/entry_points.py

@@ -0,0 +1,9 @@
+"""This module provides system wide command to interface with the pulp platform."""
+import os
+import sys
+
+
+def pulp_manager_entry_point():
+    os.environ["DJANGO_SETTINGS_MODULE"] = "pulp.app.settings"
+    from django.core.management import execute_from_command_line
+    execute_from_command_line(sys.argv)

app/setup.py

@@ -30,4 +30,9 @@
         'Programming Language :: Python :: 3.4',
         'Programming Language :: Python :: 3.5',
     ),
+    entry_points={
+        'console_scripts': [
+            'pulp-manager=pulp.app.entry_points:pulp_manager_entry_point'
+        ]
+    },
 )

docs/integration_guide/rest_api/index.rst

@@ -4,10 +4,10 @@ REST API Reference
 All REST API endpoints are protected with basic authentication. The password for the "admin"
 user can be set using two methods.
 
-    ``python manage.py reset-admin-password``
+    ``pulp-manager reset-admin-password``
 
 The above command prompts the user to enter a new password for "admin" user.
 
-    ``python manage.py reset-admin-password --random``
+    ``pulp-manager reset-admin-password --random``
 
-The above command generates a random password for "admin" user and prints it to the screen.
+The above command generates a random password for "admin" user and prints it to the screen.