Moved reverseSorting to resources.utils
Split nodes module into 2 - separated nodes_list related code to nodes-list module
Some cleanup
Re-implemented active search query as a nodes_picker widget level state model;
Refactored nodes_list;
Started implementing search_crumb button
Work with models as much as possible;
Change this.changed of nodes_list back to false after every search indexing;
Fixed sorting to work on the cached filtered set
Merge branch 'develop' of https://github.com/prjts/open-budget into develop