major update. added buddy groups. will also contribute an node access control...
major update. added buddy groups. will also contribute an node access control module which uses these groups ... fixed many many bugs/ugliness, and probably introduced a few. if you are happily using buddylist now, you might wait a while until these changes get exercised by some sites ... database update required. i added a column and changed the indices. see the buddylist.mysql file
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