error loading new files when whitespace in filename

[brvoigt]

When filenames have a space in them an error occurs in /slideshow/loader/archive_manager/add_items
This is due to going from s_items DAT to a CHOP format and then back to DATs in chopto1 DAT. This introduces an "_" for all spaces and the add_items script fails because it can not find a file of that name.

[makingpippop]

Yes indeed, for now, spaces or any special character in the filename will cause an error. I'm planning to update my "archive manager" to make those work.