Item id is checksum and size
Multi-select active tags
Align tag glyphs with heading
Move 'tag-add' glyph into tag cloud
Change Item key to be 'name' (checksum, size)

Also implement item view by symlink actual file to
/public/images/current
View item image
move tag view to tags#home
make 'add tag' a separate glyph
Alternate edit and filter mode