[NTG-context] Bib module in mkiv

Hi, Hans sent me a patch for the bib module so that it now should work with the latest mkiv once again, but the code needs testing before being included in the context distribution, so please do so. You can get the new version of the module from http://modules.contextgarden.net/bib Note: you need the latest context beta, because the bib module required a small extension to the core. Best wishes, Taco