Cleaned up onValidate method on settings model
Cleaned up onValidate method on settings model

no-issue

Explicit arguments and async/await make this nicer on the eyes

e10/Ghost,janvt/Ghost,JohnONolan/Ghost,TryGhost/Ghost,JohnONolan/Ghost,TryGhost/Ghost,ErisDS/Ghost,bitjson/Ghost,JohnONolan/Ghost,janvt/Ghost,TryGhost/Ghost,bitjson/Ghost,ErisDS/Ghost,ErisDS/Ghost,e10/Ghost