Tweak to compile 93266fd pre-NET40

And one last version bump, this time with AssemblyVersion

Bumped version to 2.2.4.1

Test fixes for .NET 2.0

Bump version to 2.2.2

Bump version to 2.2.1

Update assembly and nuget spec versions for 2.2.0 final release

Update assembly and nuget spec versions for RC2 release

Update assembly and nuget spec versions for RC1 release

Update assembly version information to 2.2.0-beta1