Fix some issues syncing playbooks

* Build a list of playbooks and store it in the database at sync time
* Fix an issue running playbook sync on jobs for scan jobs
* Remove a TODO that was unneeded

awx/main/models/projects.py

@@ -7,6 +7,9 @@ import os
 import re
 import urlparse
 
+# JSONField
+from jsonfield import JSONField
+
 # Django
 from django.conf import settings
 from django.db import models
@@ -236,6 +239,14 @@ class Project(UnifiedJobTemplate, ProjectOptions, ResourceMixin):
         help_text=_('The last revision fetched by a project update'),
     )
 
+    playbook_files = JSONField(
+        blank=True,
+        default=[],
+        editable=False,
+        verbose_name=_('Playbook Files'),
+        help_text=_('List of playbooks found in the project'),
+    )
+
     admin_role = ImplicitRoleField(parent_role=[
         'organization.admin_role',
         'singleton:' + ROLE_SINGLETON_SYSTEM_ADMINISTRATOR,