Show placeholder popup while preparing download
Fix show_link button for batch annotate panel
Basic form for download 'zip name'
Fix archived downloads for single image
Handle zero or 1 archived file for multiple images
getArhivedFilesInfo() for OMERO 4 images
Add archivedFilesInfo to filesetInfo
Add BlitzGateway getFilesetFilesInfo() and getArchivedFilesInfo()
Blitz count*Files() uses get*FilesInfo()
web uses conn.getFilesetFilesInfo() methods
Blitz getImportedFilesInfo() new method
Web uses image.getImportedFilesInfo()
Don't use image.countImportedImageFiles()
Align 'Download' menu item with Insight
Web 'Export as OME-TIFF...' disabled if not available
webgateway download_as for zips of jpegs/pngs
Basic 'Save as jpeg' as zip working
Menu item 'Save As JPEG'
Fix batch selection of Projects, Datasets etc
Tiny html fixes to download_placeholder.html