Publishing

Added methods to access the publish-index. (retrieve all published objects, search in published objects, retrieve all published versions of one object.
Adapted UI dependent on Roles. Published Objects are retrievable for anonymous users, all other objects only for admin or user-role.
Login added to UI
@MichaelHoppe Kannst du deinen Formatter noch einstellen, damit er in } while nach eine do{} keinen Umbruch einfügt?