Add image builder
Add image preview adapter
Add image tab
Add preview listing
Register image adapter for png and jpg
Prepare setup for test with ftw.file
Add ftw.file image preview
Add ftw.colorbox as dependency (for the preview tab).
Add upgrade step (install ftw.colorbox).
Load colorbox on preview tab
Preview size is configurable
Show images on document tab by default
Add pills to document tab
Add pills to preview tab
Add title to preview item / fix style attr
Add preview css
Update translations
Group previews by modification date
Add default preview adapter
Add infinity scroll