Fix assembly name for Xamarin.Mac
Fix assembly name for Xamarin.Mac

ghuntley/AkavacheSandpit,bbqchickenrobot/Akavache,shana/Akavache,martijn00/Akavache,shana/Akavache,Loke155/Akavache,MathieuDSTP/MyAkavache,gimsum/Akavache,akavache/Akavache,jcomtois/Akavache,kmjonmastro/Akavache,PureWeen/Akavache,MarcMagnin/Akavache,shiftkey/Akavache,mms-/Akavache,christer155/Akavache