The GitHub Statistics application (http://extensions.xwiki.org/xwiki/bin/view/Extension/GitHub%20Application) has been released in version 2.1.
This versions brings a new UI for the {{committers}} macro and some bug fixes.
Example of new UI resulting of running the following (count commits for the xwiki github organization for the past 365 days and list contributors too):
{{committers since="365" repositories="xwiki/*" contributors="true"/}}
Full release notes at http://extensions.xwiki.org/xwiki/bin/view/Extension/GitHub%20Application#Hv2.1
