Instead of having `ol.events.Key` be a listener object or an array of listener objects, it should be less error prone to have it just be a single listener object.
To avoid using too many functions with multiple return types, the `ol.events.*` functions for registering and unregistering listeners no longer accept an array of event types (and only a single key is returned when registering).
To make it convenient for users to register multiple listeners at once, the `observable.on()` method accepts an array of event types. Internally in the library, we should use the less risky `ol.events.listen()`.
A feature can have a geometry whose value is an ol.geom.Geometry instance or null. A feature can also have no geometry property. By default, a feature has no geometry property. To set a geometry, one can be passed to the constructor (including null) or passed to setGeometry().
The map does not fire ol.render.Event#render. Change events are
now only listed for classes that fire them, and a description
about when they are fired is added.
This change adds a stability value to the api annotation, with
'experimental' as default value.
enum, typedef and event annotations are never exportable, but
api annotations are needed there to make them appear in the
docs.
Nested typedefs are no longer inlined recursively, because the
resulting tables get too wide with the current template.
This commit simplifies the exports.js plugin so it only relies
on the stability notes to generate the documentation, which
completely decouples it from the exportable API.
As a rule of thumb, whenever something has an 'api' annotation,
it should also have a 'stability' annotation. A more verbose
documentation of ol3 specific annotation usage is available in
the new 'apidoc/readme.md' file.
This commit also modifies all source files to implement these
usage suggestions.
Besides the slight performance benefit of not prerendering the default
circle style until we need to, this change also allows loading OL3
in browsers that don't support the canvas API (IE 7-8). If the circle
style is rendered on load, the lack of HTMLCanvasElement#getContext
causes IE 7-8 to bomb, regardless of if vector styles are used at all.
