Squashed 'js/vendor/subtree-quick-cluster/' changes from e38ee13..4ceb823

4ceb823 Add public web mercator to geodetic conversion function.

git-subtree-dir: js/vendor/subtree-quick-cluster
git-subtree-split: 4ceb8233d22d30efaeef19b11fa02a0ee9892fb2
Merge commit '8e8ea86e54edfcc090c3c90ef8acbc48a6a334a4'
Alter locations data formating to work with new 'stacked' cluster property.
Merge branch 'master' of https://github.com/spatialdev/OAM-PUBLIC
Pull correct quick stats activity counts.