Small code tidy in handle_tree_selection()
Tree images and selected objects have fileset id
Moving icon selection logic to containers_icon.html

This code will be removed from center_plugin.thumbs.js.html in a subsequent commit
Filesets of selected thumbnails shown in center panel
Fix 'wells' de-selection bug from previous commits
Blitz image.getFileset() method
Templates use img.fileset.id.val don't load filesets
Show fileset thumbnails in right panel for Images
Adding Thumbnail_Figure to Publications menu
New base.html for Script UI dialogs. Thumbs script fields
Adding Tags to Thumbnail_Figure UI
Sort & group thumbs by selected Tags
Improved layout of tag sorting in table of thumbs
Only load Tags that are used on thumbnails
Support loading thumbs via 'Dataset'
Removing duplicate Tags
Tag sorting within Datasets of thumbs
Show 'untagged' images checkbox updates UI
Slider zooms thumbnails
Update Max Columns on change