Add autostart feature documentation
Callback block is optional
Prevent illegal execution of groups
Refactoring: extract command execution logic
Add autoStart functionality for CommandGroups
Add example for auto start group
Merge branch 'feature/autostart' into develop
Add MGBlockCommand implementation (closes #2)
Fix counter bug in autoStart example
Set podspec version to 0.0.2
Add missing license header
Remove Objection dependency from Podfile
Name class MGBlockCommand
Add example for using MGBlockCommand for animation
Passing data to commands using userInfo