AjaxFranceLabs is a contribution from our company so that the community can manipulate Solr, Datafari and Constellio through an Ajax Framework.
Spiritually, it is a child of the AjaxSolr framework, and you will see many similarities, in particular at the architecture level. The AjaxSolr has been a great source of inspiration for us.
Still, the code itself has been done from scratch (except for 2 classes which are almost copy pastes), as there were parts that were rather different, because of the differences between Constellio and Datafari/Solr.
Although it is not part of the framework per se, we gave a particular care to the widgets that make use of our framework, because we know that you'll probably start with these widgets in order to get a hands on on our framework (you may even want to keep them as they are).