[development] Date Calc and ADODB date library

[Moshe Weitzman]

> And my original question -- does anyone know exactly how I should attribute the original authors and licenses in my Drupalized version?

we have at times included 3rd party code in core. these packages served 
us well for a while but we eventually moved on. perhaps you can go back 
in time and figure out how we attributed them. i would think this could 
be done similarly. i agree that this functionality in core would be useful.

XML-RPC by Ed Dumbill: 
http://cvs.drupal.org/viewcvs/drupal/drupal/includes/xmlrpcs.inc?rev=1.9.4.1&view=markup

XTEMPLATE theme system
http://cvs.drupal.org/viewcvs/drupal/drupal/themes/xtemplate/xtemplate.inc?hideattic=0&view=markup

PEAR DB: 
http://cvs.drupal.org/viewcvs/drupal/drupal/includes/database.pear.inc?hideattic=0&view=markup
The file above was a wrapper around PEAR DB. I think we required people 
to download it themselves if they wanted it. So perhaps not much help to 
you.