per #1430 no new in documentation
more consistancy
Merge branch 'no-new' of https://github.com/calvinmetcalf/Leaflet into gh-pages-nonew

* 'no-new' of https://github.com/calvinmetcalf/Leaflet:
  more consistancy
  per #1430 no new in documentation
rename section titles; rename creation column to factory
merge gh-pages-nonew, ref #1660