NXP-14992: remove advanced and simple search related contributions
NXP-15053: move 'search_listing_ajax' layout to nuxeo-search-ui
NXP-14992: remove advanced search local configuration test
NXP-15010: add selectManyCheckboxUserAggregate widgetType
NXP-15010: add contentView searchLayout widget control insert
NXP-14992: add back DocumentSearchActions for compat, and deprecate it
NXP-14992: add back search widgets
NXP-15283: fix override of actionStyleClass value when using display 'icons' on actions widgets
NXP-15283: remove 'button' and 'actionLink' default style classes and buttons, just add 'button' by default for content view selection actions
NXP-15250: add richer renderer for aggregates widget (more/less control on checkboxes + select2 on lists)
NXP-15250: add new aggregate widget for user + set default properties for richer renderers
NXP-15250: rename js function + clean up widget default properties + l10n + format