init new Debugger FlxSystemButtons
Merge branch 'dev' of https://github.com/HaxeFlixel/flixel into debugger_buttons
Refactor VCR and VCRFrontend, pause, resume, step does not require the debugger enabled anymore. Uses the new Fluid layout and system buttons.
Merge pull request #622 from HaxeFlixel/debugger_buttons

Debugger buttons and VCR refactor closes #348