fix for crash on large number set as raised here -> https://github.com/DDRBoxman/google-maps-ios-utils/issues/14

[johndpope]

https://github.com/DDRBoxman/google-maps-ios-utils/issues/14

[clusterManager_ hideItemsNotInVisibleBounds];

exposed ability to remove items and test if cluster contains item.

Or optionally - you can just cherry pick the hideItemsNotInVisibleBounds method

[ghost]

Can u help drop a sample project with this approach ? Thank you