T1 Constrain Map Zoom
* disable Mouse zoomWheel
* TODO: constrain zoom out function
T1 Constrain Map Zoom

* restrict zoom out function
* TODO: fix map on main page
T1 Constrain Mapzoom

test map zoom constrain on home page
Merge pull request #16 from jenpaff/constrain-mapzoom

T1 Constrain Map Zoom