[5.4] add OverlappingStrategy for Schedule/Event#18295

Merged

taylorotwell merged 8 commits intolaravel:5.4from fetzi:feature/schedule-overlapping-strategy

Mar 23, 2017

+197-44

Commits on Mar 9, 2017

add overlapping strategy to be able to override the cache implementation for withoutOverlapping
fetzi
committed

Commits on Mar 10, 2017

Commits on Mar 20, 2017