New tests and bug fixes.

--HG--
rename : NModule.Tests/nm-cr.cs => NModule.Tests/CircularDependencyTests.cs
rename : NModule.Tests/nm-dr.cs => NModule.Tests/DependencyResolverTests.cs
rename : NModule.Tests/nm-ld.cs => NModule.Tests/ModuleLoaderTests.cs
rename : NModule.Tests/nm-rc.cs => NModule.Tests/RefCountTests.cs
rename : NModule.Tests/nm-rr.cs => NModule.Tests/RoleRegistrationTests.cs
rename : NModule.Tests/nm-ul.cs => NModule.Tests/UnloadingTests.cs
rename : NModule.Tests/nm-ur.cs => NModule.Tests/UnresolvedDependencyTests.cs
Add generic type capabilities to NModule.
Update dummy class name.
Add 0.5 release notes and update ChangeLog, release script, sign assemblies.
Added tag 0.5 for changeset c3667b63620d
Consolidate the 4 distinct DLLs into 2 DLLS.
Update AssemblyInfo files.
Update interface and role names.
Bring DepNode to 2013.
0.6 release.
Added tag 0.6 for changeset b67718353fe7
Cleanup sources.
Fix some XML comments, remove unneeded comments, update documentation.