Version 5 Beta

A heavy refactor of all classes, this version focuses on cleaner code and easier usability. The highlights are in UPGRADING.md.

What's Changed

• Imposter by @MGatner in #49
• Handlers by @MGatner in #50
• Frontend by @MGatner in #51
• Refactor Config and Controllers by @MGatner in #52
• Actions as Controllers by @MGatner in #54
• Remove Action Entity by @MGatner in #56
• Runner Refactor by @MGatner in #58
• CRUD Clean Up by @MGatner in #59
• Action::maySkip() by @MGatner in #60
• Security by @MGatner in #61
• Model Cleanup by @MGatner in #62
• Button Action by @MGatner in #63
• Add Runner tests by @MGatner in #64

Full Changelog: v4.1.0...v5.0.0-beta.1