Description of problem:
Product documentation[1] explains how to edit /etc/katello/katello.yml for LDAP support but there are no comments in the file to assist users with LDAP config.

[1] http://documentation-devel.engineering.redhat.com/docs/en-US/CloudForms/1.1/html/Installation_Guide/Configuring_LDAP_for_CloudForms_System_Engine.html

Version-Release number of selected component (if applicable):
1.1

How reproducible:
100%

Steps to Reproduce:
1. Open /etc/katello/katello.yml
2. observer no comments explaining supported values for 'warden' and 'ldap_roles'


Expected results:
common:
  # supported values: 'database' (local users) or 'ldap'
  warden:  ldap
  # allows locally-managed groups
  ldap_roles: true



Additional info: CloudEngine settings.yml file
:default_deltacloud_url: http://localhost:3002/api

:auth:
  # supported strategies: database, ldap
  :strategy: ldap
:groups:
  # allows locally-managed groups
  :enable_local: true
  # allows ldap-managed groups
  :enable_ldap: true
:iwhd:
  :url: http://localhost:9090
  :oauth:
    :consumer_key: wGj/SifuR8RWpwWPs+mrqL538C5mPwal
    :consumer_secret: dK+pzhdtnDYN3+7RBjlbp8PuT4PpaFAh
 
:imagefactory:
  :url: https://localhost:8075/imagefactory
  :oauth:
    :consumer_key: mlJTwxqbRmGM2VtptJr4QHqPBgasu7JV
    :consumer_secret: 52/fjbkRxwyYHl7t4eq11eojTZvLXah+

:session:
  :timeout: 15 # minutes