v2.4.22

Since v2.4.5:

• Firebase SDK v8.3.0
• Faster @models() implementation
• doc.dashboardUrl, query.dashboardUrl, openDashboard()
• proxyClassicSupport flag for compatibility with Ember.js classic
• Firestore experimentalAutoDetectLongPolling, experimentalForceLongPolling
• store.blobFromUint8Array, support for saving blobs in firestore
• Query onData listeners
• collection.load({ type: 'ref' })