v0.3.0

• Switch to latest versions of Scala: 2.13.x, 2.12.x, and 2.11.x
• Switch to jsoniter-scala-core parser/serializer for RFC8259 support and for more safety and efficiency
• Remove usage of Scala Reflection library
• Replace as[T] by asString/asInt/asDouble/asBoolean methods
• Add pretty printing
• Add deepCopy method
• Switch to publishing on the Maven Central

All changes in this release: 5b61382...v0.3.0