* Make apache2_mod_proxy work with Python 3, half-way modern Apache 2 versions, and add basic tests (#9762)
* Move Apache 2 installation to setup role.
* Make module work with Python 3.
* Add basic tests.
* Add changelog fragment.
* Simplify change.
* Pass referer.
* apache2_mod_proxy: follow-up for #9762, forgot one place with find_all/findAll (#9775)
Follow-up for #9762, forgot one place.
(cherry picked from commit 8e36fd4847)
Felix Fontein