Go asynchronous simple function utilities, for managing execution of closures and callbacks
Full Changelog: https://github.com/vardius/gollback/compare/v1.1.0...v1.1.1
Remove instance, package provides public methods now
Fix cancel and timeouts for Race method
Race method handle context cancel or timeouts now
Add Retry method
Improved execution time, use context cancel for Race method
Remove internal cancel and unnecessary for loop with select
Use wait group instead of channels.