Bump to v6.0.3 for release.
Merge branch 'master' into next
Update to next development release.
Revert "Use an explicit intent to start VehicleService."

This broke permissions for all third-party apps. A big oops.

This reverts commit 346e0dff27c72855ba83000e788ecb215e08912f.
Don't register listeners in location provider unless it is active.
Watch out for an uninitialized vehicle service in a background task.

Fixed #209.
Update TODO about explicit service intent.

See #213.
Set component of VehicleService intent to make it explicit.

Fixed #213.
Fix a typo.