Tickets resolved in this release:
- [#72] Source data retention
- [#414] add systemd service files - by meijjaa
- [#405] More updates to the Dutch translation of the documentation - by lckarssen
- [#404] Fix minor typo in Dutch translation - by lckarssen
- [#398] iOS Web App: prevent same-window links from being opened externally - by Joris Vervuurt
- [#399] Veel calls naar api.buienradar
- [#406] Spelling correction trends page
- [#413] Hoge CPU belasting op rpi 2 icm DSMR 5.0 meter
- [#419] Requirements update (January 2018)