Adds widget column to NeatlineExhibit model.
Adds 'Widgets' multiselect to exhibit add/edit form.
Populates 'Widgets' multiselect on exhibit add/edit form.
Implements widgets save/edit.
Scrubs out testing layers in layers.json.
Flips widget multioptions array to make labels display correctly.
Adds addRecordField and addExhibitField static methods to NeatlinePlugin.
Implements neatline_record_tabs and neatline_exhibit_tabs filters.
Blocks in record form plugin tabs templating.
Gets rid of all direct  variable passing in templates, just use _nl_exhibit().
Implements record form plugin panes.
Gets rid of unneeded root path variable in _editor template.