v1.2.0
ES6 modules & Rollup (#4989)
Scrubbing of detached DOM elements, prevents memory leaks (#5265)
Fix(DomEvent): DomEvent.off should return this (#5601)
Only rearrange DOM in toFront/toBack if needed (#5465)
Make L.Draggable._dragging "public" again (#5659)
ES2015 modules: Add index.js files to subdirectories/namespace (#5329)