Some static methods in ERXPartial seem only partly implemented

[paulhoadley]

I wanted to use ERXPartial.partialProperties(), which should return a list of property names for the partial entity. Its implementation is based on a couple of other static methods:

public static NSArray<String> partialProperties() {
	return partialAttributes().arrayByAddingObjectsFromArray(partialRelationships());
}

Except both of those methods return just NSArray.EmptyArray, e.g.:

public static NSArray<String> partialRelationships() {
	return NSArray.EmptyArray;
}

It looks a bit like those were method stubs to be implemented later. @davidAtGVC: I don't suppose you can remember what was going on here, can you? If you could even point me at where we might set these arrays up, I might be able to fix this up.