Calling setStyleURL() multiple times in a short period
of time will enqueue requests on the FileSource. The
order they get replied is not guaranteed to be the same
as the order we make the requests. The side effect was
the last style set not always being the one rendered.
Now we cancel the current request if we make a new one
(and there was no point on keeping it around anyway).
We now drive rendering from the main thread calling renderSync(),
but if we do it just after we set the style URL it will assert
because renderSync() expects the style to be fully loaded.
Whoever determined the boundaries of the District of Columbia did not have fit-to-bounds implementations in mind. With this change, shapes that are not unrotated rectangles fit much, much better.
Also, on iOS 8.0+, use `+[NSLayoutConstraint activateConstraints:]` and `+deactivateConstraints:` to efficiently prevent redundant constraints from lingering.
Fixes#1779.
Added a bunch of functions to work with MGLCoordinateBounds in a separate header analogous to MKGeometry.h. Added resolution-independent tests for common fit to bounds scenarios.
Each side of the bounding box is specified independently, allowing more flexibility than the offset + padding construct supported in mapbox/mapbox-gl-js’ Camera.
The new implementation is now public and takes advantage of MGLCoordinateBounds. It is re-ported from `Camera.prototype.fitBounds()` in mapbox/mapbox-gl-js to ensure correct behavior. A new function, MGLCoordinateBoundsMake(), makes it easier to create an MGLCoordinateBounds for use with this method.
Listening to both `locationManager:didChangeAuthorizationStatus:` and `locationManager:didFailWithError:` delegate methods is unnecessary. Setting `showsUserLocation = NO` in the first means that the second never gets called and our `mapView:didFailToLocateUserWithError:` delegate method never gets called.
