git-trunk/config: Move the Jira config to modules

Change-Id: d145a412aa
git-trunk/modules/common: Change IssueTracker

This change makes it possible to do certain things in the future, for example
for repo prune to filter stories and prune only these assigned to the current
user.

Change-Id: 825e9a0b88
wip

Change-Id: 9c48703451