checkpoint:  spiked out the new RootPipelineGraph and stuff it'll need to call
checkpoint:  added the Profile/PluginGraph hierarchy
checkpoint:  lots and lots of spiking for the new PipelineGraph model, UT's for new PluginGraph functionality
checkpoint:  ignoring the Model tests, tweaked IPipelineGraph a little bit
checkpoint:  converted the Profile implementation to just using a Registry/Profile for each logical profile
checkpoint:  killed InstanceFactory, ProfileExpression, ProfileManager, and the old PipelineGraph
checkpoint:  fixed 19 unit tests resulting from Configure() only being able to be called once
checkpoint:  fixed a couple more UT's due to MissingInstance not applying
checkpoint:  fixed more UT's due to a problem with Container.Dispose()
checkpoint:  fixed a problem with automocking arrays
fixed a couple more UT's by making Container.Configure() respect scanning operations
checkpoint: fixed a couple more issues with container disposal
checkpoint:  fixed ValidationBuildSession problems
fixed one problem with missing instance giving you bad results on concrete types
checkpoint: changed the mechanics for getting a profile container, fixed nested container naming
checkpoint:  fixed a big problem with how the Container(Action<>) constructor was working
checkpoint:  eliminated an obsolete bug test, ignored a couple more UT's that are related to Model
checkpoint:  fixed the problem with a Profile container not knowing how to deal w/ open generics held in the profile
checkout:  fixed a couple problems with open generics and profiles, AutoMocker problem w/ concrete types related to the Model being busted
checkpoint: fixed another UT for generics and profiles