Implemented ClearableTextInput widget
Started implementing search for filtering list items
Added entity_field widget
Styling & layout improvements
Implemented widget instance enhancements for some sugar;
Added as_docs flag to search for working directly with the data;
Added try-catch clause around regexping the search term;
Added support for flags setting for the search regexp;
Added support for custom search term clean handler
Fixed, improved and enhanced searching in entities and nodes lists
Implemented styling to complement search behavior on #entities_list
Set input direction to RTL for now
Implemented top section of nodes_picker pane;
Refactored ui/main;
Added some helper filters to Nodes collection
Added a call to focus on clear
Added direction:rtl and text-align: right to body, html
Implemented navigation inside nodes_list;
Implementing nodes_breadcrumbs
Refactored ui into 2 separate modules;
Added enter and esc keys handling to nodes_search
Implemented behavior of nodes_breadcrumbs component
Fixed layout of breadcrumbs buttons and history menu
Merge remote-tracking branch 'origin/develop' into develop