v4.18.0

• New Loc.getLineage() function for calculating the tree of location nodes given a location node ID
• New <tangy-gate> input for blocking UI until the Tangy Gate's value is set to true. This is useful for preventing users from proceeding when a complex condition is being run in an on-change or when asynchronous database code is running and we need a way to tell the user to hang out while it completes.