multiple file transfers with resume fix

                               History of Changes

Daniel (25 June 2001)

- Björn Stenberg correctly identified a problem that occurred when downloading

  several files with curl, and using resume. The first file's resume index was

  then used for all files, resulting in weird results...

- Anton Kalmykov provided a fix that makes curl work with form field names

  with spaces like when -F is used.