Hiya, im taking part in Google’s codein tasks, here are the links to the various things you need.
XWiki: http://www.xwiki.org/xwiki/bin/view/XWiki/shubyy
Jira XWiki: Log in - XWiki.org JIRA
Matrix ID: @shubyy:matrix.org
Username:shubyy
Permalink: You're invited to talk on Matrix
Thanks,