Next releases:

- rethink intern/extern stuff

- recursion into FTP links

- make a nice wxWindows GUI for linkchecker

- SF bug #992389 bit me when I wanted to do absolute imports
  at the checker classes :/
  When the bug is fixed we can import absolute classes

- warn if overall size of page (including images/flash/etc.) is too big
  right now, the page size is only html content

- save downloaded pages