Fixes
- Let dropdown edit config, scale more sensibly on slide out.
- Change to sessionStorage to mitigate httpAuth issue. Issue #384
- Ensure groups are restored rather than completely disappeared on refresh. Issue #386
- Let bar charts also auto scale negative values. Issue #387
- Use rounded line joins on charts to reduce spiky-ness.
- Ensure numeric input matches theme (now that it is editable)
- Fix Gauge so {{ numeric formatting }} works again.