Adds backend configuration allowing source / origin of data
definition. Rentention properties and automatic snapshot.

Adds the possibility to use CAS 1.6.
Add new options in backend configuration.

issue #6181

issue #6150

This modifier stores a value in LDAP configuration object to make sure
 to always increment it each time the template is used.

issue #6102

issue #6065

Avoid hard-coded limits and instead have a configuration option to set
 maximum size for user avatars

issue #6049

issue #5531

This is to avoid hard coded values

issue #5531

Just in case

issue #5721

This will allow to disable password methods, for instance clear, empty
 or md5.

issue #5886

issue #5966

Fix schema error, PHP error, and ACL setup.

issue #5135

ACLs are not handled yet

issue #5135

issue #5778

When moving a node with subnodes, like a departement, this will use a
 filter like member=* to get references, meaning it will open all groups
 and roles and other objects which may reference DNs to make sure the
 foreign key is applied and the new DN is stored.
This will be slow if there are a lot of those objects.
Impacted fields are member, manager, roleOccupant and owner.
This is needed because they do not allow SUBSTR searches by schema
 definition.

issue #5799

This reverts commit be4ed60e.

Replace "==" with "==="
Use a literal instead of the Object constructor.

Signed-off-by: Benoit Mortier <benoit.mortier@opensides.be>

Fixes #4529 The category in department and organization should be a dropdown filled from the configuration backend

Fixes #4529 The category in department and organization should be a dropdown filled from the configuration backend