Version 1.2.1

Fixed NPE crash in restoreState

Version 1.2.0

• Added support for nullable property
• Added support for null value in live data

Version 1.1.0

• added LiveData support

Version 1.0.1

• updated kotlin version to 1.3.0
• updated android sdk version to 28
• removed unused dependency

Version 1.0.0

v1.0.0

initial commit