Enhancements
- Add open and close options for groups to ui_control node.
- Add cubic and cubic-monotone to chart interpolation options.
- Allow ui_control msg to widgets also set .label property.
- Add option to try to load dist/loading,html for those that want it.
- Add msg.event for button clicks.
- Make Gridstack a normal dep so they can count installs. Bump to v0.5.5
- Let mousewheel change slider. Issue #575.
- Add UTC option to Chart node X-Axis
- Add no resend on refresh option to template node.
Fixes