visible tile range example
update to example
rebuild b2
Merge branch 'b2' of github.com:ryanttb/geo into b2
b2 live-ish
geomap - actually stop image downloads in _cancelUnloaded
#123 - track pixelSizeMax
add our sandbox testing page back
geomap - [bug] #123 browsers can pinch past min/max zoom levels
Merge pull request #161 from ryanttb/b2

clamp pinch zoom to min/max