Fixes https://github.com/tracim/tracim/pull/31#discussion_r53466633

tracim/development.ini.base

 beaker.session.key = tracim
 beaker.session.secret = 3283411b-1904-4554-b0e1-883863b53080
 
-# Auth type
+# Auth type (internal or ldap)
 auth_type = internal
 
 #By default session is store in cookies to avoid the overhead

tracim/tracim/config/deployment.ini_tmpl

 beaker.session.key = pod
 beaker.session.secret = ${app_instance_secret}
 app_instance_uuid = ${app_instance_uuid}
+
+# Auth type (internal or ldap)
 auth_type = internal
 
 # If you'd like to fine-tune the individual locations of the cache data dirs