ACKNOWLEDGEMENTS.txt

Enormous thanks to:
Jeffrey Harris, for his incredible work on the original package
Tim Baxter, for all his work maintaining vobject over the past few years
Adieu, for keeping things alive on github
Kristian Glass, for his enormous help with testing and Python3 matters
Gustavo Niemeyer, for all his work on dateutil
Dave Cridland, for helping talk about vobject and working on vcard
TJ Gabbour, for putting his heart into parsing