Enable Longer File Names and Provide Warnings for Automatic Shortening

[AltoRetrato]

I noticed that some long file names are shortened after being imported, but often there is important information in file names that users do not want removed. I understand that there are file name length limitations on many systems, but it seems the longest total path for a file after importing was only 160 characters - yet I can easily create much longer file names. Ideally, the Importer plugin would ask me to rename any file if necessary, or at least inform me when it is automatically shortening file names.