Add the APIs required to change the time machine policy for users and organizations.

endpoints/api/organization.py

@@ -116,6 +116,11 @@ class Organization(ApiResource):
           'type': 'boolean',
           'description': 'Whether the organization desires to receive emails for invoices',
         },
+        'tag_expiration': {
+          'type': 'integer',
+          'maximum': 2592000,
+          'minimum': 0,
+        },
       },
     },
   }
@@ -161,6 +166,10 @@ class Organization(ApiResource):
         logger.debug('Changing email address for organization: %s', org.username)
         model.update_email(org, new_email)
 
+      if 'tag_expiration' in org_data:
+        logger.debug('Changing organization tag expiration to: %ss', org_data['tag_expiration'])
+        model.change_user_tag_expiration(org, org_data['tag_expiration'])
+
       teams = model.get_teams_within_org(org)
       return org_view(org, teams)
     raise Unauthorized()