Restore ability to hide "more info"

Now the "more information" is only used for occurrence information. However, strings such as "Operations" or "Edit" will appear in hundreds (thousands?) of modules, so when you ask for more information, that could easily expand your form to multiple screens, which is not desired to be kept that way once you got what you were looking for. So I believe its best to restore the possibility to hide this information.

Therefore, I added another wrapper for this information, which gets the information loaded. Then show/hide actions only update the local wrapper's display status, and will not call back to the server again.

Also, since this is now a normal link and falls back to displaying the information, I've implemented a Drupal page, that is slightly better. Its not the black-on-white text that it was before, but instead uses the actual site theme if invoked in standalone mode (not via AHAH).

Finally, added a tooltip to the numbers telling what they mean, in case someone was wondering. This needed modifications in the tests as well.

Committing this improvement.