Changes * Config structure changed significantly, see `examples/config.example.json`
4.0.0
Adds * Any google play track now can be rolled out to (not just "production")
Changes * Deprecates `"google_play_track": "rollout"` and `"channel": "rollout"` in task payloads * When "rollout" is still used, the target track will be set based on `google_play_track` set in config
Changes * In the task payload, `google_play_track` now explicitly overrides the track in Google Play, and `channel` is required to disambiguate between apps
2.0.0
Changes * Structure of config to support both cases of "channels map to individual apps" and "channels map to Google Play tracks within a single app"