v2.2.0

Added

• Add support for user custom attributes by @antonioturdo in #46
• Add support for /users/merge endpoint by @antonioturdo in #47

Changed

• Fix pull request template by @JellyBellyDev in #43
• Add static as return type of BaseObject fromArray method by @antonioturdo in #45
• Add properties to Subscription/GetStatusResponse class by @antonioturdo in #48

Full Changelog: v2.1.0...v2.2.0