Units for ihm_external_files.file_size_kb?

[benmwebb]

The dictionary is unclear what the units are for ihm_external_files.file_size_kb. Are "kilobytes" old-style (1024 bytes) or new-style (1000 bytes)? If the former, it would be clearer to say "kibibytes". Either way the multiplier should be stated in the dictionary so it's clear.

[tomgoddard]

Maybe making it ihm_external_files.file_size in bytes would be better.