v2.0.0-beta.11

• fix(populate): missing childKey causes no population - #277 (thanks @JeremyPlease)
• feat(firestore): firestoreConnect - React HOC that sets listeners to Cloud Firestore (similar to firebaseConnect, but for Cloud Firestore instead of Real Time Database) - #286
• feat(firestore): firestoreReducer is exported from redux-firestore included to handle managing firestore state - #286
• feat(core): withFirebase - React HOC for just passing props.firebase (firebaseConnect without any listener management)
• feat(docs): Firestore page added to docs (outlining usage of firestoreConnect and setListener)
• feat(examples): Firestore complete example added
• feat(docs): README and Query examples simplified + improved
• feat(docs): FAQ moved to its own docs page