* use syntax highlighting for Guile attachments
http://localhost:1234/issue/36487#2


* detect commits and linkify them
this should depend on per-package configuration

* MAYBE home page: present the newest issues first, and only open ones.
We currently show issues with recent activity (with the most recently touched issue first).  This seems fine.

* Mumi has no paging: It only presents one page of issues, but it
doesn't say how many are there in total nor does it page through all
other pages of issues.

* Add links to all tag queries (such as "easy")