Fix #471: FileNotFound looking for WebsiteAttribute on mono
Fix #471: FileNotFound looking for WebsiteAttribute on mono

Tarmil/websharper,Tarmil/websharper,intellifactory/websharper,Tarmil/websharper,intellifactory/websharper,intellifactory/websharper,Tarmil/websharper,intellifactory/websharper