[release] mdapi: 2.10.4 and 2.10.5

[Pierre-Yves Chibon]

Good Morning Everyone,

I cut two new releases of mdapi this morning: 2.10.4 and 2.10.5 the last one
fixing an issue for fedora-packages that Clément ran into.

Here are the corresponding changelogs:
* Fri Feb 09 2018 Pierre-Yves Chibon <pingou(a)pingoured.fr&gt; - 2.10.5-1
- Update to 2.10.5
- Fix the srcpkg endpoint by making it search for a direct match before trying
  the sub-packages

* Fri Feb 09 2018 Pierre-Yves Chibon <pingou(a)pingoured.fr&gt; - 2.10.4-1
- Update to 2.10.4
- Fix the content_type header on JSONP output


This is currently happily running in stg.

Happy querying!
Pierre