changed MessageBinder.SpecialValues to use case insensitive key comparison for case sensitive parameter usage
changed MessageBinder.SpecialValues to use case insensitive key comparison for case sensitive parameter usage

serenabenny/Caliburn.Micro,TriadTom/Caliburn.Micro,Caliburn-Micro/Caliburn.Micro,bitbonk/Caliburn.Micro,TriadTom/Caliburn.Micro