Merge pull request #621 from swedishborgie/postgresql

Adds support for PostgreSQL which adds #87 and is mentioned in #246.
3 jobs for tedomum-prod in 15 minutes and 18 seconds (queued for 24 seconds)
Status Job ID Name Coverage
  Build
canceled #388
build

00:15:18

 
  Test
canceled #390
allowed to fail
code_quality

canceled #389
test