Remove PropertyChangedExtensionMethods.cs
Change to using @JanEggers method of OnPropertyChanged
Add support for propertyexpression.Body being of type UnaryExpression, e.g. when property is a boolean (fixes bug in previous commit)
Rename owner variable (just use generic x lambda param name)
Rename GetArgs to GetPropertyChangedEventArgs
Add ContextMenu to Address textbox includes PasteAndGo command