0.15.0: Merge pull request #492 from Amsterdam/release/0_15_0
Backend Release 0.15.0 highlights
PDF markers are positioned better and permissions were renamed.
Jira tickets
https://datapunt.atlassian.net/browse/SIG-2533
https://datapunt.atlassian.net/browse/SIG-2192
External contributions
Fix for running the test suite on Linux, contributed by the VNG.