* Added pristine version of JSONEncoder.swift to the project
* Renamed JSONEncoder and JSONDecoder and namespaced them under Database. Skip JSONSerialization steps of encoding and decoding
* Added convenience decoding to DataSnapshot and encoding to DatabaseReference
* Convert to 2 space indentation
* Added ServerTimestamp - modelled on Firestore ditto
* Added a ServerIncrement enum/property wrapper. Not too happy about the property wrapper API though
* Fix ServerTimestamp Date decoding and encoding
* Fix ServerTimestamp Date decoding and encoding
* Added API for setting default decoder and encoder
* Fix typo and linter error
* Changed requirement for ServerIncrement generic parameter to be AdditiveArithmetic instead of Numeric. Added tests for server value coding.
* Add test for alternative ServerIncrement API and demonstrate that this version of the API also models actual optionality
* Test the default encoder and decoder
* Added more tests derived from corresponding Firestore coding tests
* Ran linter
* Delete EncoderTests.swift
Ooops, I added this file prematurely.
* Added modified version of tests from apple/swift
* Rename all but a few occurrences of 'json' and add a reference to the original file from apple/swift
* Made it possible to decode Optional types
* Updated copyright messages
* Removed CodableErrors and force cast ServerValue.timestamp() based on feedback on PR
* Changed completion handler to take a Result<Void, Error>
* Add escaping to closure parameter
* Fixed format
* Change completion handler type to accept and Optional Error rather than a Result<Void, Error>
* Remove ServerIncrement for now
* Fix function signature error
* Remove Swift 4 support. Remove default encoder/decoder configuration. Add FirebaseDatabaseSwift.podspec - I don't know if it's good though, as I don't use CocoaPods myself.
* Update podspec with fixes from review
* Run scripts/style.sh
* Add -Beta to FirebaseDatabaseSwift library
Charlotte Liang