- Made the script 'code-clean.sh' ignore .psp files.

- Tidied up the script names a bit ...

- Took all "rating logic" out of the account.module and moved it into
  a seperate module called "rating.module".  This should allow people
  to experiment with different rating heuristics/algorithms.

- The rating module also generates a "Top 100 users" page, see:
     http://drop.org/module.php?mod=rating

- Adjusted ./scripts/php-clean to ignore png files.
  (I should do it the way around and make it ignore everything but
  our php files.)

- initial import of the preliminary translation code.
- added timer.inc for benchmarking purpose
- bugfix for php-clean
- bugfix for account.php
- removed redundant format_data
- ...

- removed all tabs

- removed redundant spaces

structure changes, some sections are expanded.  Take a look at the source
code or ask me to elaborate on certain issues/topics.