Upstream changelog: * Bug #4115: Do not accept empty title and content when they are mandatory * Bug #4116: Planning entity restrict trouble * Bug #4117: Time computation for contract notification * Bug #4118: Error during task migration * Bug #4119: Auto change status to assign for problem on accepted status * Bug #4121: Targets deletion trouble * Bug #4122: Problem notification trouble * Bug #4132: Tree dropdown : all parent are not displayed * Bug #4164: can't link a recursive problem to a ticket * Bug #4165: History for SLA in a ticket * Bug #4166: Plugin : link to create new ticket * Bug #4190: Itil categories don't be cleaned on purge group / user * Bug #4196: OCS TAG only updated in case of automatic transfer * Bug #4197: Trouble on notification tag : ##ticket.item.model## * Bug #4232: Wrong heading field empty adding a new document to a ticket * Bug #4266: User column of a licence * Bug #4269: Problem of setting category if not set but is mandatory in a template of ticket * Bug #4300: Authentification : Don't see fully BaseDN or RootDN if an apostrophe is present * Feature #4146: Add actiontime for task in ticket list columns (+date ?) * Feature #4193: Display ID on ticket list associated to problems * Task #4135: Update to CAS 1.3.2