6.0.0-beta4

EZP-24955: Dynamically inject limitation map into RoleService
EZP-24882: Symfony Console's commands must end with Command
EZP-24951: RichText: embed element's content is converted from XHTML5 edit format
EZP-24538: Add language priority handling to Legacy Search
EZP-23831: format of RichText field over REST is now semantically enhanced xhtml5
EZP-24869: Improved routing, fixed preview controller and conversion of location view rules
EZP-24904: improve indexable for Country field type