The details of who did what can be found in the files themselves.  As
an overview

  Tom Lord made the initial implementation and 95%+ of the current
  code base.

  Walter Landry made a numerous small improvements.

  Scott Parish added in sftp and webdav support, using the neon library.

  Alexander Deruwe added in several new commands and bug fixes.

  Jonathan Geisler added in indicated-config-file and valid-config-name

  Karel Gardas added in the file-undo command and significant mkpatch
    speedups.

  Robert Collins refactored src/file-utils/inv.c.

In addition, numerous people did small bug fixes etc.  Their names can
be found in the =THANKS files in the various subdirectories.
