Updates for dashboard - version 0.3

Adding some features to create dynamically tasks
dashboard. Allowing tasks mail to create granular objects.

Adds proper time schedule with proper attribute.
Change of schema to adapt to this change.

Add sender emails and fixes typo in ldap schema.

Mail retrieval from DN put in LDAP.
Commit to fix in order to save attribute in ldap.

Each cells of tasks management report informations.
Not proper ones yet, but it is a start.

Removes requirement for a name within Task Mail name

Add users selection for mail task as well as schedule within
generic page of tasks creation.

Adds management required columns, back processing still has to be
developped

Adds the first configuration page of Macro.

Mail list will be implemented within Task object

Add invitations fields and verifications of mail list imported.
Adapts the core-fd.schema.

Adds user reminder capability as well as adding conflict between
user recovery and itself. Disallowing the activation of the tab.

Adds User Recovery TAB and search ldap method to make sure
only one User Recovery Mail template can exists.

Basic mail template object created with required fields.
Next steps is file attachment processing.

issue #6181

issue #6152

issue #6152

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

This should allow to search in template fields

issue #6107

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

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

This is an attempt at putting restored object through FD open/save cycle
 to make sure they save without error and trigger any hook that may look
 for changes.
Also store object type in the snapshot LDAP node, even if it is unused
 at the moment.

issue #5715

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

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