(reported by UnConeD)
- added "add node" link to book selection box and made it display the
current location
- removed tabs and whitespaces from themes - done automatically
- fixed small visual glitch in includes/function.inc
- changed SQL tables around a bit to be more consistent
(result: small changes to a lot of different files)
- improved robustness of includes/node.inc
- improved output of cron.module
- improved output of node.php
into a much more powerful and easier to maintain "book module": each
"page" in the big "drop.org/drupal book" is a node and everyone with
a user account can suggest new pages or updates of existing pages.