Tweak PostgreSQL development instance settings
Tweak PostgreSQL development instance settings

* use more general regexps
* increase shared_buffers to 128MB
* set checkpoints_segments to 1
* set wal_keep_segments to 0

agdsn/pycroft,agdsn/pycroft,lukasjuhrich/pycroft,lukasjuhrich/pycroft,agdsn/pycroft,agdsn/pycroft,lukasjuhrich/pycroft,lukasjuhrich/pycroft,agdsn/pycroft