This removes geometry specific change events. Since geometries are mere observables, we only get generic change events. To minimize changes in other places, as a workaround, we cache geometry bounds on features. This is not the way things should be long term, but the objective is to remove the geometry specific event.
Add `ol.ObjectEvent` for changes to `ol.Object` properties. Previously, `ol.Object` dispatched instances of `goog.events.Event` with type `change`. Now `ol.ObjectEvent` instances will be dispatched on property changes. The events include a `getKey` method to get the name of the property being changed. The `beforepropertychange` type event is fired before a property value changes, and the `propertychange` type event fires after the property value changes.
Where an enum value is used as an event type, it should be alllowercase (to follow DOM events). Property names should be ALLUPPERCASE in this case (just as camelCase and PascalCase are converted to CONSTANT_CASE).
If you know ahead of time that you only want to listen for changes for a specific property, the foo:change type events can be useful. If you want to listen for changes on all properties, the change event becomes more useful if it provides information on what changed. And the beforechange event allows listeners to access values before they change.
This change also adds some type annotations for better type
checking, introduces different write options for writing
transactions and queries, and provides new writeGetFeature and
writeTransaction methods.
This adds a bit more inconsistency to the library, but we didn't have complete consistency before. Almost all existing string enum values are lowercase (a couple are camelCase and one is dash-separated). The closure library isn't consistent either (with case for enum properties or values). I imagine this could be justified in saying someone could blindly use GeoJSON type values in places, but in the end, you'll need to read the docs before guessing right.
