This also introduces some additional properties for human readable details of the violations to the model

Move background event color to scheduling init code instead of every single background event

This prevents it from being edited in scheduling view

Benjamin Hättasch authored 4 years ago and Nadja Geisler committed 4 years ago

Introduce writable API for events (protected)
Implement change callback function in javascript
Use full version of jquery in admin backend (to make ajax functionality available)