Initial Database Configuration bootstrap

* Settings manifest, mapping internal settings to what can be used in
  the database along with type information etc.
* Initial Database model
* Helper object that overlays database settings on django settings

awx/main/models/configuration.py

@@ -0,0 +1,42 @@
+# Copyright (c) 2015 Ansible, Inc.
+# All Rights Reserved.
+
+# Python
+
+# Django
+from django.conf import settings
+from django.db import models
+
+# Tower
+from awx.main.models.base import CreatedModifiedModel
+
+class TowerSettings(CreatedModifiedModel):
+
+    SETTINGS_TYPE_CHOICES = [
+        ('string', "String"),
+        ('int', 'Integer'),
+        ('float', 'Decimal'),
+        ('json', 'JSON'),
+        ('password', 'Password'),
+        ('list', 'List')
+    ]
+
+    key = models.CharField(
+        max_length=255,
+        unique=True
+    )
+    description = models.TextField()
+    category = models.CharField(max_length=128)
+    value = models.TextField()
+    value_type = models.CharField(
+        max_length=12,
+        choices=SETTINGS_TYPE_CHOICES
+    )
+    user = models.ForeignKey(
+        'auth.User',
+        related_name='settings',
+        default=None,
+        null=True,
+        editable=False,
+    )
+