dumb_down_viewer 0.1.0

DumbDownViewer (ddv) is a recursive directory listing command with limited functionality. In some case, you can use ddv like "tree" command (http://mama.indstate.edu/users/ice/tree/), even though these commands are not compatible: Several options of "tree" are missing in ddv, but there are also some options that are available only in ddv (such as --copy-to).