v2.2.0

• Add u64 flag type #72
• Allow actions to return ActionResult values to represent errors #76

v2.1.0

• nested sub command #71

v2.0.0

• Remove color module #65
• Fix flag help text #68

v1.1.2

• Fix help text #58
• Fix panic macro #59

v1.1.1

• Show command alias in help

v1.1.0

• Help Improvements
• Add description field to Command struct
• Changed the usage of the Flag struct to description

v1.0.0

• Action inside call help.
• Optional other then required fields.
• Enabling error handling in the action function
• Command alias

v0.7.1

• Check same named command when a command is added

v0.7.0

• Remove Redundant Code in App#run
• flag parsing error with kind message
• Single and Multiple branch deletion of App

v0.6.2

• Refactoring