mapproxy.ini: run only one process
mapproxy.ini: run only one process

Temporary fix. Supervisord failed to restart uwsgi with multiple processes,
leaving a zombie each time.

RBE-Avionik/skylines,skylines-project/skylines,shadowoneau/skylines,Harry-R/skylines,Harry-R/skylines,snip/skylines,TobiasLohner/SkyLines,kerel-fs/skylines,skylines-project/skylines,TobiasLohner/SkyLines,Turbo87/skylines,shadowoneau/skylines,shadowoneau/skylines,RBE-Avionik/skylines,TobiasLohner/SkyLines,shadowoneau/skylines,RBE-Avionik/skylines,RBE-Avionik/skylines,kerel-fs/skylines,skylines-project/skylines,Turbo87/skylines,Turbo87/skylines,Harry-R/skylines,snip/skylines,Turbo87/skylines,Harry-R/skylines,snip/skylines,kerel-fs/skylines,skylines-project/skylines