Doubleclick and scrollwheel zoom already can be forced to remained centered on map center. Now the same for touchzoom
Doubleclick and scrollwheel zoom already can be forced to remained centered on map center. Now the same for touchzoom
Merge pull request #2527 from mtmail/touchZoom-center

touchZoom:'center'
Update changelog related to touchZoom:center

Adding change of accepted pull request https://github.com/Leaflet/Leaflet/pull/2527 to changelog.
Merge pull request #2529 from mtmail/patch-2

Update changelog related to touchZoom:center