Version 1.17.1

Use npm instead of yarn, update react scripts (#137)

* Use npm instead of yarn, update react scripts

* Update all dependencies

* Version 1.17.0

Version 1.16.1

Version 1.16.0

Version 1.15.1

Version 1.15.0

Version 1.14.2

Version 1.14.1

Add more date prefixes, include child categories (#119)

This commit adds two new small features:
- Two extra date presets in the charts page
- When selecting a parent category on the charts page, it automatically
  includes child categories in the charts.

Fix null exception in category select (#118)