- got AppDomainContext instantiating correctly from the 2nd AppDomain and am calling Foo() successfully.
- added some Debug.WriteLine() tracing to better follow what was happening.
- added a 10 minute timeout to the WCF binding so I could take my time debugging.
- added back the AssemblyResolve handler, but put it in a separate class (can't be in the MarshalByRefObject descendant since its args aren't serializable. It's currently not called, however, since now it can find the assembly properly.
- added some more debug logging in App.xaml.cs.
Merge pull request #4 from obrob/master

AppDomainLoading is working now. This was fixed by Rob. This is merged via a pull request.