v1.3.4
ES6 modules & Rollup (#4989)
remove comment in Control.Layers.js: TODO keyboard accessibility (#5684)
upgrade deps, fix indenting (#5743)
docstrings for the zoomControl map property (#6254)
Scrubbing of detached DOM elements, prevents memory leaks (#5265)
ES2015 modules: Add index.js files to subdirectories/namespace (#5329)