When a read only property and the type is an interface we can't serialize the type.

This change is released under the MIT license.
Add test to ensure using concrete List as readonly property still serializes

This change is released under the MIT license.
[bcl] Work around quadratic behavior in NunitLite's AreEquivalent () methods.
Merge pull request #940 from alistair/ilist_xml_serialization

ilist xml serialization
[corlib] Add .net compatible separators for es culture