Sets up version number for next release.
Updates to NuGet.exe v2.7.1.
Fixes NuGet build break.
Includes DNOA.Mvc NuGet package in DNOA.
Fixes strong name signing of unified assembly.
Removes unified assembly, since it's fundamentally broken due to anonymous type name collisions from the async methods that are now in the various assemblies.
Removes delay-signing build authoring leftovers that was still breaking the build.