- added -t and -a arguments
- added "import wcnew; webchecker = wcnew" in place of "import
  webchecker" (I assume that if you're happy with the changes, you'll
  just replace webchecker.py with wcnew.py, but if I were to do that,
  the diffs would be incomprehensible)
- fixed buggy -v argument (I think you got out of sync with the
  way verbosity was handled in webchecker vs. wcgui between 1.5 and
  1.5.2)
- made -v actually do something by adding a call to c.setflags()
  (probably the same problem as above)
- updated references to URLs to accommodate wcnew.py's pair
  representation; added appropriate calls to format_url() to handle
  display; added argument to ListPanel() initialization to provide
  access to format_url()

[And untabified --GvR]